16045678931 has 2 divisors, whose sum is σ = 16045678932. Its totient is φ = 16045678930.

The previous prime is 16045678919. The next prime is 16045678951. The reversal of 16045678931 is 13987654061.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16045678931 - 2¹⁴ = 16045662547 is a prime.

It is a super-2 number, since 2×16045678931² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16045678931.

It is not a weakly prime, because it can be changed into another prime (16045678951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8022839465 + 8022839466.

It is an arithmetic number, because the mean of its divisors is an integer number (8022839466).

Almost surely, 2^16045678931 is an apocalyptic number.

16045678931 is a deficient number, since it is larger than the sum of its proper divisors (1).

16045678931 is an equidigital number, since it uses as much as digits as its factorization.

16045678931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 16045678931 in words is "sixteen billion, forty-five million, six hundred seventy-eight thousand, nine hundred thirty-one".