10644551564402 has 16 divisors (see below), whose sum is σ = 18342350886912. Its totient is φ = 4538313619200.

The previous prime is 10644551564359. The next prime is 10644551564431. The reversal of 10644551564402 is 20446515544601.

It is a super-3 number, since 3×10644551564402³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1969751474 + ... + 1969756877.

It is an arithmetic number, because the mean of its divisors is an integer number (1146396930432).

Almost surely, 2^{10644551564402} is an apocalyptic number.

10644551564402 is a deficient number, since it is larger than the sum of its proper divisors (7697799322510).

10644551564402 is a wasteful number, since it uses less digits than its factorization.

10644551564402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3939508553.

The product of its (nonzero) digits is 2304000, while the sum is 47.

The spelling of 10644551564402 in words is "ten trillion, six hundred forty-four billion, five hundred fifty-one million, five hundred sixty-four thousand, four hundred two".