1640087237135 has 128 divisors (see below), whose sum is σ = 2224483430400. Its totient is φ = 1156238110720.

The previous prime is 1640087237099. The next prime is 1640087237149. The reversal of 1640087237135 is 5317327800461.

It is a happy number.

It is not a de Polignac number, because 1640087237135 - 2²⁴ = 1640070459919 is a prime.

It is a super-2 number, since 2×1640087237135² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1640087237135.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2121716609 + ... + 2121717381.

It is an arithmetic number, because the mean of its divisors is an integer number (17378776800).

Almost surely, 2^{1640087237135} is an apocalyptic number.

1640087237135 is a deficient number, since it is larger than the sum of its proper divisors (584396193265).

1640087237135 is a wasteful number, since it uses less digits than its factorization.

1640087237135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193.

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 1640087237135 in words is "one trillion, six hundred forty billion, eighty-seven million, two hundred thirty-seven thousand, one hundred thirty-five".