16462942864 has 15 divisors (see below), whose sum is σ = 31897946217. Its totient is φ = 8231214816.

The previous prime is 16462942861. The next prime is 16462942871. The reversal of 16462942864 is 46824926461.

It is a happy number.

The square root of 16462942864 is 128308.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 16389120400 + 73822464 = 128020^2 + 8592^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16462942861) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 497194 + ... + 529270.

Almost surely, 2^16462942864 is an apocalyptic number.

16462942864 is the 128308-th square number.

It is an amenable number.

16462942864 is a deficient number, since it is larger than the sum of its proper divisors (15435003353).

16462942864 is an frugal number, since it uses more digits than its factorization.

16462942864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64162 (or 32079 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 52.

The spelling of 16462942864 in words is "sixteen billion, four hundred sixty-two million, nine hundred forty-two thousand, eight hundred sixty-four".