20356625526664 has 64 divisors (see below), whose sum is σ = 47058760252800. Its totient is φ = 8056149863424.

The previous prime is 20356625526569. The next prime is 20356625526703. The reversal of 20356625526664 is 46662552665302.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20356625526599 and 20356625526608.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 201676054 + ... + 201776965.

It is an arithmetic number, because the mean of its divisors is an integer number (735293128950).

Almost surely, 2^{20356625526664} is an apocalyptic number.

It is an amenable number.

20356625526664 is an abundant number, since it is smaller than the sum of its proper divisors (26702134726136).

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

20356625526664 is a wasteful number, since it uses less digits than its factorization.

20356625526664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403453102 (or 403453098 counting only the distinct ones).

The product of its (nonzero) digits is 93312000, while the sum is 58.

The spelling of 20356625526664 in words is "twenty trillion, three hundred fifty-six billion, six hundred twenty-five million, five hundred twenty-six thousand, six hundred sixty-four".