16534353651 has 8 divisors (see below), whose sum is σ = 22641637584. Its totient is φ = 10724986080.

The previous prime is 16534353601. The next prime is 16534353751. The reversal of 16534353651 is 15635343561.

It is a happy number.

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

It is not a de Polignac number, because 16534353651 - 2²⁷ = 16400135923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16534353601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74478960 + ... + 74479181.

It is an arithmetic number, because the mean of its divisors is an integer number (2830204698).

Almost surely, 2^16534353651 is an apocalyptic number.

16534353651 is a deficient number, since it is larger than the sum of its proper divisors (6107283933).

16534353651 is a wasteful number, since it uses less digits than its factorization.

16534353651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148958181.

The product of its digits is 486000, while the sum is 42.

The spelling of 16534353651 in words is "sixteen billion, five hundred thirty-four million, three hundred fifty-three thousand, six hundred fifty-one".