20617087922 has 6 divisors (see below), whose sum is σ = 30925936479. Its totient is φ = 10308442430.

The previous prime is 20617087913. The next prime is 20617087949. The reversal of 20617087922 is 22978071602.

It can be written as a sum of positive squares in only one way, i.e., 10308543961 + 10308543961 = 101531^2 + 101531^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=101531.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 152297 + ... + 253827.

Almost surely, 2^20617087922 is an apocalyptic number.

20617087922 is a deficient number, since it is larger than the sum of its proper divisors (10308848557).

20617087922 is an frugal number, since it uses more digits than its factorization.

20617087922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203064 (or 101533 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 20617087922 in words is "twenty billion, six hundred seventeen million, eighty-seven thousand, nine hundred twenty-two".