10661360556644 has 48 divisors (see below), whose sum is σ = 21871490081280. Its totient is φ = 4452410229120.

The previous prime is 10661360556643. The next prime is 10661360556731. The reversal of 10661360556644 is 44665506316601.

10661360556644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10661360556644² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10661360556643) 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, 17387147 + ... + 17989874.

It is an arithmetic number, because the mean of its divisors is an integer number (455656043360).

Almost surely, 2^{10661360556644} is an apocalyptic number.

10661360556644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

10661360556644 is an abundant number, since it is smaller than the sum of its proper divisors (11210129524636).

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

10661360556644 is a wasteful number, since it uses less digits than its factorization.

10661360556644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35377308 (or 35377306 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 53.

The spelling of 10661360556644 in words is "ten trillion, six hundred sixty-one billion, three hundred sixty million, five hundred fifty-six thousand, six hundred forty-four".