18606455253 has 24 divisors (see below), whose sum is σ = 27610442496. Its totient is φ = 12065522400.

The previous prime is 18606455251. The next prime is 18606455281. The reversal of 18606455253 is 35255460681.

18606455253 is a `hidden beast` number, since 1 + 8 + 60 + 64 + 5 + 525 + 3 = 666.

It is not a de Polignac number, because 18606455253 - 2¹ = 18606455251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18606455199 and 18606455208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18606455251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1616308 + ... + 1627778.

It is an arithmetic number, because the mean of its divisors is an integer number (1150435104).

Almost surely, 2^18606455253 is an apocalyptic number.

It is an amenable number.

18606455253 is a deficient number, since it is larger than the sum of its proper divisors (9003987243).

18606455253 is a wasteful number, since it uses less digits than its factorization.

18606455253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16385 (or 16382 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 18606455253 in words is "eighteen billion, six hundred six million, four hundred fifty-five thousand, two hundred fifty-three".