16464432452 has 12 divisors (see below), whose sum is σ = 31029122796. Its totient is φ = 7598968800.

The previous prime is 16464432437. The next prime is 16464432487. The reversal of 16464432452 is 25423446461.

It can be written as a sum of positive squares in 2 ways, for example, as 5316451396 + 11147981056 = 72914^2 + 105584^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158311799 + ... + 158311902.

It is an arithmetic number, because the mean of its divisors is an integer number (2585760233).

Almost surely, 2^16464432452 is an apocalyptic number.

It is an amenable number.

16464432452 is a deficient number, since it is larger than the sum of its proper divisors (14564690344).

16464432452 is a wasteful number, since it uses less digits than its factorization.

16464432452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316623718 (or 316623716 counting only the distinct ones).

The product of its digits is 552960, while the sum is 41.

The spelling of 16464432452 in words is "sixteen billion, four hundred sixty-four million, four hundred thirty-two thousand, four hundred fifty-two".