16315475553 has 48 divisors (see below), whose sum is σ = 26530416640. Its totient is φ = 9593251200.

The previous prime is 16315475551. The next prime is 16315475567. The reversal of 16315475553 is 35557451361.

16315475553 is a `hidden beast` number, since 1 + 6 + 3 + 1 + 547 + 55 + 53 = 666.

It is not a de Polignac number, because 16315475553 - 2¹ = 16315475551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16315475499 and 16315475508.

It is not an unprimeable number, because it can be changed into a prime (16315475551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 258063 + ... + 315003.

Almost surely, 2^16315475553 is an apocalyptic number.

16315475553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16315475553 is a deficient number, since it is larger than the sum of its proper divisors (10214941087).

16315475553 is a wasteful number, since it uses less digits than its factorization.

16315475553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57070 (or 57067 counting only the distinct ones).

The product of its digits is 945000, while the sum is 45.

The spelling of 16315475553 in words is "sixteen billion, three hundred fifteen million, four hundred seventy-five thousand, five hundred fifty-three".