16634465553 has 32 divisors (see below), whose sum is σ = 24612618240. Its totient is φ = 9950705280.

The previous prime is 16634465509. The next prime is 16634465567. The reversal of 16634465553 is 35556443661.

It is not a de Polignac number, because 16634465553 - 2⁶ = 16634465489 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (16634465753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17100 + ... + 183197.

It is an arithmetic number, because the mean of its divisors is an integer number (769144320).

Almost surely, 2^16634465553 is an apocalyptic number.

It is an amenable number.

16634465553 is a deficient number, since it is larger than the sum of its proper divisors (7978152687).

16634465553 is a wasteful number, since it uses less digits than its factorization.

16634465553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200397.

The product of its digits is 3888000, while the sum is 48.

The spelling of 16634465553 in words is "sixteen billion, six hundred thirty-four million, four hundred sixty-five thousand, five hundred fifty-three".