3640504759161 has 8 divisors (see below), whose sum is σ = 4854030164640. Its totient is φ = 2426991263232.

The previous prime is 3640504759093. The next prime is 3640504759181. The reversal of 3640504759161 is 1619574050463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3640504759161 - 2²⁵ = 3640471204729 is a prime.

It is a super-2 number, since 2×3640504759161² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3640504759181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2237896 + ... + 3505593.

It is an arithmetic number, because the mean of its divisors is an integer number (606753770580).

Almost surely, 2^{3640504759161} is an apocalyptic number.

It is an amenable number.

3640504759161 is a deficient number, since it is larger than the sum of its proper divisors (1213525405479).

3640504759161 is a wasteful number, since it uses less digits than its factorization.

3640504759161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5954775.

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 3640504759161 in words is "three trillion, six hundred forty billion, five hundred four million, seven hundred fifty-nine thousand, one hundred sixty-one".