10621404755616 has 96 divisors (see below), whose sum is σ = 28588402858176. Its totient is φ = 3450827520000.

The previous prime is 10621404755587. The next prime is 10621404755617. The reversal of 10621404755616 is 61655740412601.

10621404755616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×10621404755616² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (10621404755617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2852946 + ... + 5420526.

It is an arithmetic number, because the mean of its divisors is an integer number (297795863106).

Almost surely, 2^{10621404755616} is an apocalyptic number.

10621404755616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10621404755616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14294201429088).

10621404755616 is an abundant number, since it is smaller than the sum of its proper divisors (17966998102560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10621404755616 is a wasteful number, since it uses less digits than its factorization.

10621404755616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568686 (or 2568678 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 10621404755616 in words is "ten trillion, six hundred twenty-one billion, four hundred four million, seven hundred fifty-five thousand, six hundred sixteen".