20302077906 has 48 divisors (see below), whose sum is σ = 48036006720. Its totient is φ = 6145827360.

The previous prime is 20302077899. The next prime is 20302077911. The reversal of 20302077906 is 60977020302.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142480 + ... + 246788.

It is an arithmetic number, because the mean of its divisors is an integer number (1000750140).

Almost surely, 2^20302077906 is an apocalyptic number.

20302077906 is an abundant number, since it is smaller than the sum of its proper divisors (27733928814).

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

20302077906 is a wasteful number, since it uses less digits than its factorization.

20302077906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105311 (or 105308 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The spelling of 20302077906 in words is "twenty billion, three hundred two million, seventy-seven thousand, nine hundred six".