10653709644 has 36 divisors (see below), whose sum is σ = 27299124216. Its totient is φ = 3502588608.

The previous prime is 10653709637. The next prime is 10653709691. The reversal of 10653709644 is 44690735601.

10653709644 is a `hidden beast` number, since 106 + 537 + 0 + 9 + 6 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×10653709644² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10653709644.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2024334 + ... + 2029589.

It is an arithmetic number, because the mean of its divisors is an integer number (758309006).

Almost surely, 2^10653709644 is an apocalyptic number.

It is an amenable number.

10653709644 is an abundant number, since it is smaller than the sum of its proper divisors (16645414572).

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

10653709644 is a wasteful number, since it uses less digits than its factorization.

10653709644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054006 (or 4054001 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 10653709644 in words is "ten billion, six hundred fifty-three million, seven hundred nine thousand, six hundred forty-four".