161716922976 has 96 divisors (see below), whose sum is σ = 498263028480. Its totient is φ = 44956048896.

The previous prime is 161716922911. The next prime is 161716922977. The reversal of 161716922976 is 679229617161.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161716922977) 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, 3227166 + ... + 3276893.

It is an arithmetic number, because the mean of its divisors is an integer number (5190239880).

Almost surely, 2^161716922976 is an apocalyptic number.

161716922976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161716922976 is an abundant number, since it is smaller than the sum of its proper divisors (336546105504).

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

161716922976 is a wasteful number, since it uses less digits than its factorization.

161716922976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6504116 (or 6504108 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 57.

The spelling of 161716922976 in words is "one hundred sixty-one billion, seven hundred sixteen million, nine hundred twenty-two thousand, nine hundred seventy-six".