1640550556113 has 64 divisors (see below), whose sum is σ = 2675393349120. Its totient is φ = 872842752000.

The previous prime is 1640550556093. The next prime is 1640550556129. The reversal of 1640550556113 is 3116550550461.

It is not a de Polignac number, because 1640550556113 - 2²⁵ = 1640517001681 is a prime.

It is a super-2 number, since 2×1640550556113² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1640550506113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44295543 + ... + 44332563.

It is an arithmetic number, because the mean of its divisors is an integer number (41803021080).

Almost surely, 2^{1640550556113} is an apocalyptic number.

It is an amenable number.

1640550556113 is a deficient number, since it is larger than the sum of its proper divisors (1034842793007).

1640550556113 is a wasteful number, since it uses less digits than its factorization.

1640550556113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38378.

The product of its (nonzero) digits is 270000, while the sum is 42.

The spelling of 1640550556113 in words is "one trillion, six hundred forty billion, five hundred fifty million, five hundred fifty-six thousand, one hundred thirteen".