161169355374 has 32 divisors (see below), whose sum is σ = 324719539200. Its totient is φ = 53326797600.

The previous prime is 161169355363. The next prime is 161169355379. The reversal of 161169355374 is 473553961161.

It is a super-2 number, since 2×161169355374² (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 (161169355379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1291179 + ... + 1410489.

It is an arithmetic number, because the mean of its divisors is an integer number (10147485600).

Almost surely, 2^161169355374 is an apocalyptic number.

161169355374 is an abundant number, since it is smaller than the sum of its proper divisors (163550183826).

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

161169355374 is a wasteful number, since it uses less digits than its factorization.

161169355374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120976.

The product of its digits is 2041200, while the sum is 51.

The spelling of 161169355374 in words is "one hundred sixty-one billion, one hundred sixty-nine million, three hundred fifty-five thousand, three hundred seventy-four".