137565672165 has 64 divisors (see below), whose sum is σ = 262910361600. Its totient is φ = 68027936832.

The previous prime is 137565672151. The next prime is 137565672191. The reversal of 137565672165 is 561276565731.

137565672165 is a `hidden beast` number, since 1 + 3 + 7 + 56 + 567 + 21 + 6 + 5 = 666.

It is not a de Polignac number, because 137565672165 - 2¹⁹ = 137565147877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 449997 + ... + 691106.

It is an arithmetic number, because the mean of its divisors is an integer number (4107974400).

Almost surely, 2^137565672165 is an apocalyptic number.

137565672165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

137565672165 is a deficient number, since it is larger than the sum of its proper divisors (125344689435).

137565672165 is a wasteful number, since it uses less digits than its factorization.

137565672165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141183 (or 1141177 counting only the distinct ones).

The product of its digits is 7938000, while the sum is 54.

The spelling of 137565672165 in words is "one hundred thirty-seven billion, five hundred sixty-five million, six hundred seventy-two thousand, one hundred sixty-five".