161365258396296 has 48 divisors (see below), whose sum is σ = 437151535666560. Its totient is φ = 53773573002720.

The previous prime is 161365258396193. The next prime is 161365258396313. The reversal of 161365258396296 is 692693852563161.

161365258396296 is a `hidden beast` number, since 1 + 6 + 1 + 3 + 6 + 525 + 8 + 3 + 9 + 6 + 2 + 96 = 666.

It is a super-3 number, since 3×161365258396296³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 309038640 + ... + 309560351.

It is an arithmetic number, because the mean of its divisors is an integer number (9107323659720).

Almost surely, 2^{161365258396296} is an apocalyptic number.

It is an amenable number.

161365258396296 is an abundant number, since it is smaller than the sum of its proper divisors (275786277270264).

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

161365258396296 is a wasteful number, since it uses less digits than its factorization.

161365258396296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618602626 (or 618602619 counting only the distinct ones).

The product of its digits is 755827200, while the sum is 72.

The spelling of 161365258396296 in words is "one hundred sixty-one trillion, three hundred sixty-five billion, two hundred fifty-eight million, three hundred ninety-six thousand, two hundred ninety-six".