161333713024 has 128 divisors (see below), whose sum is σ = 359914752000. Its totient is φ = 71406720000.

The previous prime is 161333713001. The next prime is 161333713043. The reversal of 161333713024 is 420317333161.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×161333713024² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13162899 + ... + 13175149.

It is an arithmetic number, because the mean of its divisors is an integer number (2811834000).

Almost surely, 2^161333713024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161333713024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179957376000).

161333713024 is an abundant number, since it is smaller than the sum of its proper divisors (198581038976).

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

161333713024 is a wasteful number, since it uses less digits than its factorization.

161333713024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12522 (or 12510 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 34.

The spelling of 161333713024 in words is "one hundred sixty-one billion, three hundred thirty-three million, seven hundred thirteen thousand, twenty-four".