20078146924 has 12 divisors (see below), whose sum is σ = 38331007848. Its totient is φ = 9126430400.

The previous prime is 20078146909. The next prime is 20078146987. The reversal of 20078146924 is 42964187002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228160717 + ... + 228160804.

It is an arithmetic number, because the mean of its divisors is an integer number (3194250654).

Almost surely, 2^20078146924 is an apocalyptic number.

It is an amenable number.

20078146924 is a deficient number, since it is larger than the sum of its proper divisors (18252860924).

20078146924 is a wasteful number, since it uses less digits than its factorization.

20078146924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456321536 (or 456321534 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 20078146924 in words is "twenty billion, seventy-eight million, one hundred forty-six thousand, nine hundred twenty-four".