162172752720 has 160 divisors (see below), whose sum is σ = 566130622464. Its totient is φ = 38046374400.

The previous prime is 162172752691. The next prime is 162172752767. The reversal of 162172752720 is 27257271261.

It is a happy number.

162172752720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 908952 + ... + 1072631.

Almost surely, 2^162172752720 is an apocalyptic number.

162172752720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162172752720 is an abundant number, since it is smaller than the sum of its proper divisors (403957869744).

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

162172752720 is a wasteful number, since it uses less digits than its factorization.

162172752720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981641 (or 1981635 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 42.

The spelling of 162172752720 in words is "one hundred sixty-two billion, one hundred seventy-two million, seven hundred fifty-two thousand, seven hundred twenty".