383071516681 has 16 divisors (see below), whose sum is σ = 443602621440. Its totient is φ = 324020071440.

The previous prime is 383071516657. The next prime is 383071516703. The reversal of 383071516681 is 186615170383.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-383071516681 is a prime.

It is a super-2 number, since 2×383071516681² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383071516601) 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, 1002741 + ... + 1331026.

It is an arithmetic number, because the mean of its divisors is an integer number (27725163840).

Almost surely, 2^383071516681 is an apocalyptic number.

It is an amenable number.

383071516681 is a deficient number, since it is larger than the sum of its proper divisors (60531104759).

383071516681 is a wasteful number, since it uses less digits than its factorization.

383071516681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334084.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 383071516681 in words is "three hundred eighty-three billion, seventy-one million, five hundred sixteen thousand, six hundred eighty-one".