10643655064544 has 12 divisors (see below), whose sum is σ = 20954695908384. Its totient is φ = 5321827532256.

The previous prime is 10643655064513. The next prime is 10643655064577. The reversal of 10643655064544 is 44546055634601.

It is a super-2 number, since 2×10643655064544² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166307110352 + ... + 166307110415.

It is an arithmetic number, because the mean of its divisors is an integer number (1746224659032).

Almost surely, 2^{10643655064544} is an apocalyptic number.

It is an amenable number.

10643655064544 is a deficient number, since it is larger than the sum of its proper divisors (10311040843840).

10643655064544 is an equidigital number, since it uses as much as digits as its factorization.

10643655064544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332614220777 (or 332614220769 counting only the distinct ones).

The product of its (nonzero) digits is 20736000, while the sum is 53.

The spelling of 10643655064544 in words is "ten trillion, six hundred forty-three billion, six hundred fifty-five million, sixty-four thousand, five hundred forty-four".