20898034156 has 48 divisors (see below), whose sum is σ = 37222526880. Its totient is φ = 10265149440.

The previous prime is 20898034141. The next prime is 20898034181. The reversal of 20898034156 is 65143089802.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47173671 + ... + 47174113.

It is an arithmetic number, because the mean of its divisors is an integer number (775469310).

Almost surely, 2^20898034156 is an apocalyptic number.

It is an amenable number.

20898034156 is a deficient number, since it is larger than the sum of its proper divisors (16324492724).

20898034156 is a wasteful number, since it uses less digits than its factorization.

20898034156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 20898034156 in words is "twenty billion, eight hundred ninety-eight million, thirty-four thousand, one hundred fifty-six".