161130929764 has 24 divisors (see below), whose sum is σ = 324424699200. Its totient is φ = 68592647136.

The previous prime is 161130929761. The next prime is 161130929767. The reversal of 161130929764 is 467929031161.

It is an interprime number because it is at equal distance from previous prime (161130929761) and next prime (161130929767).

It is a super-2 number, since 2×161130929764² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161130929761) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19306822 + ... + 19315165.

It is an arithmetic number, because the mean of its divisors is an integer number (13517695800).

Almost surely, 2^161130929764 is an apocalyptic number.

161130929764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

161130929764 is an abundant number, since it is smaller than the sum of its proper divisors (163293769436).

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

161130929764 is a wasteful number, since it uses less digits than its factorization.

161130929764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38622147 (or 38622145 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 161130929764 in words is "one hundred sixty-one billion, one hundred thirty million, nine hundred twenty-nine thousand, seven hundred sixty-four".