161316788133024 has 144 divisors (see below), whose sum is σ = 495196587849600. Its totient is φ = 49660740315648.

The previous prime is 161316788133019. The next prime is 161316788133029. The reversal of 161316788133024 is 420331887613161.

161316788133024 is a `hidden beast` number, since 1 + 6 + 1 + 316 + 7 + 8 + 8 + 13 + 302 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (161316788133019) and next prime (161316788133029).

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×161316788133024² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161316788133029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 419693764 + ... + 420077955.

It is an arithmetic number, because the mean of its divisors is an integer number (3438865193400).

Almost surely, 2^{161316788133024} is an apocalyptic number.

It is an amenable number.

161316788133024 is an abundant number, since it is smaller than the sum of its proper divisors (333879799716576).

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

161316788133024 is a wasteful number, since it uses less digits than its factorization.

161316788133024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839771787 (or 839771776 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 161316788133024 in words is "one hundred sixty-one trillion, three hundred sixteen billion, seven hundred eighty-eight million, one hundred thirty-three thousand, twenty-four".