16464636698 has 8 divisors (see below), whose sum is σ = 24738604308. Its totient is φ = 8218435264.

The previous prime is 16464636673. The next prime is 16464636757. The reversal of 16464636698 is 89663646461.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16082551489 + 382085209 = 126817^2 + 19547^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 6940061 + ... + 6942432.

Almost surely, 2^16464636698 is an apocalyptic number.

16464636698 is a deficient number, since it is larger than the sum of its proper divisors (8273967610).

16464636698 is a wasteful number, since it uses less digits than its factorization.

16464636698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13883088.

The product of its digits is 26873856, while the sum is 59.

The spelling of 16464636698 in words is "sixteen billion, four hundred sixty-four million, six hundred thirty-six thousand, six hundred ninety-eight".