161125133416 has 32 divisors (see below), whose sum is σ = 332271152640. Its totient is φ = 72783200448.

The previous prime is 161125133399. The next prime is 161125133431. The reversal of 161125133416 is 614331521161.

It is a super-2 number, since 2×161125133416² (a number of 23 digits) contains 22 as substring.

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, 16476816 + ... + 16486591.

It is an arithmetic number, because the mean of its divisors is an integer number (10383473520).

Almost surely, 2^161125133416 is an apocalyptic number.

It is an amenable number.

161125133416 is an abundant number, since it is smaller than the sum of its proper divisors (171146019224).

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

161125133416 is a wasteful number, since it uses less digits than its factorization.

161125133416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32963473 (or 32963469 counting only the distinct ones).

The product of its digits is 12960, while the sum is 34.

Adding to 161125133416 its reverse (614331521161), we get a palindrome (775456654577).

The spelling of 161125133416 in words is "one hundred sixty-one billion, one hundred twenty-five million, one hundred thirty-three thousand, four hundred sixteen".