15152420870172 has 72 divisors (see below), whose sum is σ = 40560437788416. Its totient is φ = 4753064300544.

The previous prime is 15152420870141. The next prime is 15152420870183. The reversal of 15152420870172 is 27107802425151.

15152420870172 is a `hidden beast` number, since 1 + 5 + 1 + 52 + 420 + 8 + 7 + 0 + 172 = 666.

It is a super-4 number, since 4×15152420870172⁴ (a number of 54 digits) contains 4444 as substring.

It is a congruent number.

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, 2928588 + ... + 6235500.

It is an arithmetic number, because the mean of its divisors is an integer number (563339413728).

Almost surely, 2^{15152420870172} is an apocalyptic number.

15152420870172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15152420870172 is an abundant number, since it is smaller than the sum of its proper divisors (25408016918244).

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

15152420870172 is a wasteful number, since it uses less digits than its factorization.

15152420870172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314427 (or 3314422 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 45.

The spelling of 15152420870172 in words is "fifteen trillion, one hundred fifty-two billion, four hundred twenty million, eight hundred seventy thousand, one hundred seventy-two".