3644161646156 has 6 divisors (see below), whose sum is σ = 6377282880780. Its totient is φ = 1822080823076.

The previous prime is 3644161646113. The next prime is 3644161646219. The reversal of 3644161646156 is 6516461614463.

It is a junction number, because it is equal to n+sod(n) for n = 3644161646098 and 3644161646107.

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 as a sum of consecutive naturals, namely, 455520205766 + ... + 455520205773.

It is an arithmetic number, because the mean of its divisors is an integer number (1062880480130).

Almost surely, 2^{3644161646156} is an apocalyptic number.

It is an amenable number.

3644161646156 is a deficient number, since it is larger than the sum of its proper divisors (2733121234624).

3644161646156 is a wasteful number, since it uses less digits than its factorization.

3644161646156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911040411543 (or 911040411541 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 53.

The spelling of 3644161646156 in words is "three trillion, six hundred forty-four billion, one hundred sixty-one million, six hundred forty-six thousand, one hundred fifty-six".