20157106106 has 16 divisors (see below), whose sum is σ = 30978305280. Its totient is φ = 9832384080.

The previous prime is 20157106063. The next prime is 20157106129. The reversal of 20157106106 is 60160175102.

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, 315521 + ... + 373988.

It is an arithmetic number, because the mean of its divisors is an integer number (1936144080).

Almost surely, 2^20157106106 is an apocalyptic number.

20157106106 is a deficient number, since it is larger than the sum of its proper divisors (10821199174).

20157106106 is a wasteful number, since it uses less digits than its factorization.

20157106106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689869.

The product of its (nonzero) digits is 2520, while the sum is 29.

The spelling of 20157106106 in words is "twenty billion, one hundred fifty-seven million, one hundred six thousand, one hundred six".