17620645053 has 16 divisors (see below), whose sum is σ = 26113617216. Its totient is φ = 10477683840.

The previous prime is 17620645043. The next prime is 17620645057. The reversal of 17620645053 is 35054602671.

It is not a de Polignac number, because 17620645053 - 2⁹ = 17620644541 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17620645057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5035600 + ... + 5039097.

It is an arithmetic number, because the mean of its divisors is an integer number (1632101076).

Almost surely, 2^17620645053 is an apocalyptic number.

It is an amenable number.

17620645053 is a deficient number, since it is larger than the sum of its proper divisors (8492972163).

17620645053 is a wasteful number, since it uses less digits than its factorization.

17620645053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10074764.

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 17620645053 in words is "seventeen billion, six hundred twenty million, six hundred forty-five thousand, fifty-three".