20696087906964 has 48 divisors (see below), whose sum is σ = 53669751004800. Its totient is φ = 6896995380288.

The previous prime is 20696087906959. The next prime is 20696087906987. The reversal of 20696087906964 is 46960978069602.

20696087906964 is a `hidden beast` number, since 2 + 0 + 6 + 9 + 608 + 7 + 9 + 0 + 6 + 9 + 6 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 20696087906892 and 20696087906901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23179104 + ... + 24055415.

It is an arithmetic number, because the mean of its divisors is an integer number (1118119812600).

Almost surely, 2^{20696087906964} is an apocalyptic number.

It is an amenable number.

20696087906964 is an abundant number, since it is smaller than the sum of its proper divisors (32973663097836).

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

20696087906964 is a wasteful number, since it uses less digits than its factorization.

20696087906964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47238589 (or 47238581 counting only the distinct ones).

The product of its (nonzero) digits is 423263232, while the sum is 72.

The spelling of 20696087906964 in words is "twenty trillion, six hundred ninety-six billion, eighty-seven million, nine hundred six thousand, nine hundred sixty-four".