16456861377 has 12 divisors (see below), whose sum is σ = 25932024144. Its totient is φ = 9973855320.

The previous prime is 16456861331. The next prime is 16456861397. The reversal of 16456861377 is 77316865461.

16456861377 is a `hidden beast` number, since 1 + 6 + 4 + 568 + 6 + 1 + 3 + 77 = 666.

It is not a de Polignac number, because 16456861377 - 2²³ = 16448472769 is a prime.

It is a super-2 number, since 2×16456861377² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16456861397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83115363 + ... + 83115560.

It is an arithmetic number, because the mean of its divisors is an integer number (2161002012).

Almost surely, 2^16456861377 is an apocalyptic number.

It is an amenable number.

16456861377 is a deficient number, since it is larger than the sum of its proper divisors (9475162767).

16456861377 is a wasteful number, since it uses less digits than its factorization.

16456861377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166230940 (or 166230937 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The spelling of 16456861377 in words is "sixteen billion, four hundred fifty-six million, eight hundred sixty-one thousand, three hundred seventy-seven".