3644161646155 has 16 divisors (see below), whose sum is σ = 4444763954400. Its totient is φ = 2867484418560.

The previous prime is 3644161646113. The next prime is 3644161646219. The reversal of 3644161646155 is 5516461614463.

It is not a de Polignac number, because 3644161646155 - 2¹⁵ = 3644161613387 is a prime.

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, 30873891 + ... + 30991699.

It is an arithmetic number, because the mean of its divisors is an integer number (277797747150).

Almost surely, 2^{3644161646155} is an apocalyptic number.

3644161646155 is a deficient number, since it is larger than the sum of its proper divisors (800602308245).

3644161646155 is a wasteful number, since it uses less digits than its factorization.

3644161646155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219294.

The product of its digits is 6220800, while the sum is 52.

The spelling of 3644161646155 in words is "three trillion, six hundred forty-four billion, one hundred sixty-one million, six hundred forty-six thousand, one hundred fifty-five".