20656554162 has 16 divisors (see below), whose sum is σ = 41332928832. Its totient is φ = 6882214640.

The previous prime is 20656554143. The next prime is 20656554203. The reversal of 20656554162 is 26145565602.

It is a happy number.

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, 812289 + ... + 837332.

It is an arithmetic number, because the mean of its divisors is an integer number (2583308052).

Almost surely, 2^20656554162 is an apocalyptic number.

20656554162 is an abundant number, since it is smaller than the sum of its proper divisors (20676374670).

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

20656554162 is a wasteful number, since it uses less digits than its factorization.

20656554162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651713.

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 20656554162 in words is "twenty billion, six hundred fifty-six million, five hundred fifty-four thousand, one hundred sixty-two".