16399136001 has 16 divisors (see below), whose sum is σ = 22121320320. Its totient is φ = 10805356800.

The previous prime is 16399135981. The next prime is 16399136011. The reversal of 16399136001 is 10063199361.

It is not a de Polignac number, because 16399136001 - 2¹⁴ = 16399119617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16399136011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68596 + ... + 193658.

It is an arithmetic number, because the mean of its divisors is an integer number (1382582520).

Almost surely, 2^16399136001 is an apocalyptic number.

It is an amenable number.

16399136001 is a deficient number, since it is larger than the sum of its proper divisors (5722184319).

16399136001 is a wasteful number, since it uses less digits than its factorization.

16399136001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125576.

The product of its (nonzero) digits is 26244, while the sum is 39.

The spelling of 16399136001 in words is "sixteen billion, three hundred ninety-nine million, one hundred thirty-six thousand, one".