20225157512 has 32 divisors (see below), whose sum is σ = 43348912320. Its totient is φ = 8666066880.

The previous prime is 20225157503. The next prime is 20225157539. The reversal of 20225157512 is 21575152202.

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, 243062 + ... + 315482.

It is an arithmetic number, because the mean of its divisors is an integer number (1354653510).

Almost surely, 2^20225157512 is an apocalyptic number.

It is an amenable number.

20225157512 is an abundant number, since it is smaller than the sum of its proper divisors (23123754808).

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

20225157512 is a wasteful number, since it uses less digits than its factorization.

20225157512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77421 (or 77417 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 32.

The spelling of 20225157512 in words is "twenty billion, two hundred twenty-five million, one hundred fifty-seven thousand, five hundred twelve".