10663350621 has 16 divisors (see below), whose sum is σ = 17726089728. Its totient is φ = 5539402800.

The previous prime is 10663350617. The next prime is 10663350631. The reversal of 10663350621 is 12605336601.

It is not a de Polignac number, because 10663350621 - 2² = 10663350617 is a prime.

It is a super-2 number, since 2×10663350621² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10663350631) 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, 23080615 + ... + 23081076.

It is an arithmetic number, because the mean of its divisors is an integer number (1107880608).

Almost surely, 2^10663350621 is an apocalyptic number.

10663350621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10663350621 is a deficient number, since it is larger than the sum of its proper divisors (7062739107).

10663350621 is a wasteful number, since it uses less digits than its factorization.

10663350621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46161712.

The product of its (nonzero) digits is 19440, while the sum is 33.

The spelling of 10663350621 in words is "ten billion, six hundred sixty-three million, three hundred fifty thousand, six hundred twenty-one".