20019049152 has 56 divisors (see below), whose sum is σ = 54094050816. Its totient is φ = 6531034368.

The previous prime is 20019049123. The next prime is 20019049157. The reversal of 20019049152 is 25194091002.

It is not an unprimeable number, because it can be changed into a prime (20019049157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1100188 + ... + 1118235.

Almost surely, 2^20019049152 is an apocalyptic number.

It is an amenable number.

20019049152 is an abundant number, since it is smaller than the sum of its proper divisors (34075001664).

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

20019049152 is a wasteful number, since it uses less digits than its factorization.

20019049152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218485 (or 2218475 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 20019049152 in words is "twenty billion, nineteen million, forty-nine thousand, one hundred fifty-two".