16403876253 has 24 divisors (see below), whose sum is σ = 24747645312. Its totient is φ = 10450728288.

The previous prime is 16403876243. The next prime is 16403876257. The reversal of 16403876253 is 35267830461.

16403876253 is a `hidden beast` number, since 16 + 4 + 0 + 3 + 8 + 7 + 625 + 3 = 666.

It is not a de Polignac number, because 16403876253 - 2⁶ = 16403876189 is a prime.

It is a super-2 number, since 2×16403876253² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16403876199 and 16403876208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16403876257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190000 + ... + 262502.

It is an arithmetic number, because the mean of its divisors is an integer number (1031151888).

Almost surely, 2^16403876253 is an apocalyptic number.

It is an amenable number.

16403876253 is a deficient number, since it is larger than the sum of its proper divisors (8343769059).

16403876253 is a wasteful number, since it uses less digits than its factorization.

16403876253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73625 (or 73622 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 16403876253 in words is "sixteen billion, four hundred three million, eight hundred seventy-six thousand, two hundred fifty-three".