20175490970 has 16 divisors (see below), whose sum is σ = 36471750120. Its totient is φ = 8035559424.

The previous prime is 20175490961. The next prime is 20175490987. The reversal of 20175490970 is 7909457102.

20175490970 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7175614681 + 12999876289 = 84709^2 + 114017^2 .

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, 4327175 + ... + 4331834.

Almost surely, 2^20175490970 is an apocalyptic number.

20175490970 is a deficient number, since it is larger than the sum of its proper divisors (16296259150).

20175490970 is a wasteful number, since it uses less digits than its factorization.

20175490970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8659249.

The product of its (nonzero) digits is 158760, while the sum is 44.

The spelling of 20175490970 in words is "twenty billion, one hundred seventy-five million, four hundred ninety thousand, nine hundred seventy".