161377353234 has 12 divisors (see below), whose sum is σ = 349650932046. Its totient is φ = 53792451072.

The previous prime is 161377353199. The next prime is 161377353259. The reversal of 161377353234 is 432353773161.

161377353234 is a `hidden beast` number, since 1 + 6 + 13 + 7 + 73 + 532 + 34 = 666.

It can be written as a sum of positive squares in only one way, i.e., 87826286025 + 73551067209 = 296355^2 + 271203^2 .

It is a super-2 number, since 2×161377353234² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161377353234.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4482704239 + ... + 4482704274.

Almost surely, 2^161377353234 is an apocalyptic number.

161377353234 is an abundant number, since it is smaller than the sum of its proper divisors (188273578812).

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

161377353234 is a wasteful number, since it uses less digits than its factorization.

161377353234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8965408521 (or 8965408518 counting only the distinct ones).

The product of its digits is 952560, while the sum is 45.

The spelling of 161377353234 in words is "one hundred sixty-one billion, three hundred seventy-seven million, three hundred fifty-three thousand, two hundred thirty-four".