162057432078 has 40 divisors (see below), whose sum is σ = 363991382040. Its totient is φ = 53890809840.

The previous prime is 162057432073. The next prime is 162057432101. The reversal of 162057432078 is 870234750261.

162057432078 is a `hidden beast` number, since 1 + 6 + 2 + 0 + 574 + 3 + 2 + 0 + 78 = 666.

It is a super-2 number, since 2×162057432078² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162057432073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1119868 + ... + 1256271.

It is an arithmetic number, because the mean of its divisors is an integer number (9099784551).

Almost surely, 2^162057432078 is an apocalyptic number.

162057432078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

162057432078 is an abundant number, since it is smaller than the sum of its proper divisors (201933949962).

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

162057432078 is a wasteful number, since it uses less digits than its factorization.

162057432078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2376574 (or 2376565 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 162057432078 in words is "one hundred sixty-two billion, fifty-seven million, four hundred thirty-two thousand, seventy-eight".