161518410376 has 32 divisors (see below), whose sum is σ = 304557770880. Its totient is φ = 80303473600.

The previous prime is 161518410341. The next prime is 161518410377. The reversal of 161518410376 is 673014815161.

It is a happy number.

It is a super-2 number, since 2×161518410376² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161518410377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2825841 + ... + 2882431.

It is an arithmetic number, because the mean of its divisors is an integer number (9517430340).

Almost surely, 2^161518410376 is an apocalyptic number.

It is an amenable number.

161518410376 is a deficient number, since it is larger than the sum of its proper divisors (143039360504).

161518410376 is a wasteful number, since it uses less digits than its factorization.

161518410376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58605 (or 58601 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 161518410376 in words is "one hundred sixty-one billion, five hundred eighteen million, four hundred ten thousand, three hundred seventy-six".