165620160236424 has 16 divisors (see below), whose sum is σ = 414050400591120. Its totient is φ = 55206720078800.

The previous prime is 165620160236413. The next prime is 165620160236429. The reversal of 165620160236424 is 424632061026561.

It is a super-2 number, since 2×165620160236424² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (165620160236429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3450420004902 + ... + 3450420004949.

It is an arithmetic number, because the mean of its divisors is an integer number (25878150036945).

Almost surely, 2^{165620160236424} is an apocalyptic number.

It is an amenable number.

165620160236424 is an abundant number, since it is smaller than the sum of its proper divisors (248430240354696).

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

165620160236424 is a wasteful number, since it uses less digits than its factorization.

165620160236424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6900840009860 (or 6900840009856 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 165620160236424 in words is "one hundred sixty-five trillion, six hundred twenty billion, one hundred sixty million, two hundred thirty-six thousand, four hundred twenty-four".