1639145604095 has 16 divisors (see below), whose sum is σ = 2009655014400. Its totient is φ = 1282886006304.

The previous prime is 1639145604077. The next prime is 1639145604127. The reversal of 1639145604095 is 5904065419361.

It is a cyclic number.

It is not a de Polignac number, because 1639145604095 - 2²⁰ = 1639144555519 is a prime.

It is a super-2 number, since 2×1639145604095² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 869945 + ... + 2008754.

It is an arithmetic number, because the mean of its divisors is an integer number (125603438400).

Almost surely, 2^{1639145604095} is an apocalyptic number.

1639145604095 is a deficient number, since it is larger than the sum of its proper divisors (370509410305).

1639145604095 is a wasteful number, since it uses less digits than its factorization.

1639145604095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881174.

The product of its (nonzero) digits is 3499200, while the sum is 53.

The spelling of 1639145604095 in words is "one trillion, six hundred thirty-nine billion, one hundred forty-five million, six hundred four thousand, ninety-five".