161922952754260 has 96 divisors (see below), whose sum is σ = 378562278834432. Its totient is φ = 57863722076160.

The previous prime is 161922952754179. The next prime is 161922952754281. The reversal of 161922952754260 is 62457259229161.

It is a happy number.

It is a super-2 number, since 2×161922952754260² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78007107 + ... + 80055946.

It is an arithmetic number, because the mean of its divisors is an integer number (3943357071192).

Almost surely, 2^{161922952754260} is an apocalyptic number.

161922952754260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161922952754260 is an abundant number, since it is smaller than the sum of its proper divisors (216639326080172).

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

161922952754260 is a wasteful number, since it uses less digits than its factorization.

161922952754260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158063233 (or 158063231 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 61.

The spelling of 161922952754260 in words is "one hundred sixty-one trillion, nine hundred twenty-two billion, nine hundred fifty-two million, seven hundred fifty-four thousand, two hundred sixty".