16625536443 has 8 divisors (see below), whose sum is σ = 24630424400. Its totient is φ = 11083690944.

The previous prime is 16625536429. The next prime is 16625536489. The reversal of 16625536443 is 34463552661.

16625536443 is a `hidden beast` number, since 16 + 62 + 5 + 536 + 4 + 43 = 666.

It is not a de Polignac number, because 16625536443 - 2¹⁰ = 16625535419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16625536243) 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, 307880278 + ... + 307880331.

It is an arithmetic number, because the mean of its divisors is an integer number (3078803050).

Almost surely, 2^16625536443 is an apocalyptic number.

16625536443 is a deficient number, since it is larger than the sum of its proper divisors (8004887957).

16625536443 is an equidigital number, since it uses as much as digits as its factorization.

16625536443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615760618 (or 615760612 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The spelling of 16625536443 in words is "sixteen billion, six hundred twenty-five million, five hundred thirty-six thousand, four hundred forty-three".