20627502764465 has 32 divisors (see below), whose sum is σ = 26073188459520. Its totient is φ = 15623041722624.

The previous prime is 20627502764423. The next prime is 20627502764467. The reversal of 20627502764465 is 56446720572602.

It is a cyclic number.

It is not a de Polignac number, because 20627502764465 - 2²⁶ = 20627435655601 is a prime.

It is a super-2 number, since 2×20627502764465² (a number of 27 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 20627502764465.

It is not an unprimeable number, because it can be changed into a prime (20627502764467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1766501207 + ... + 1766512883.

It is an arithmetic number, because the mean of its divisors is an integer number (814787139360).

Almost surely, 2^{20627502764465} is an apocalyptic number.

It is an amenable number.

20627502764465 is a deficient number, since it is larger than the sum of its proper divisors (5445685695055).

20627502764465 is a wasteful number, since it uses less digits than its factorization.

20627502764465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22521.

The product of its (nonzero) digits is 33868800, while the sum is 56.

The spelling of 20627502764465 in words is "twenty trillion, six hundred twenty-seven billion, five hundred two million, seven hundred sixty-four thousand, four hundred sixty-five".