2641361656 has 16 divisors (see below), whose sum is σ = 4954055400. Its totient is φ = 1320280224.

The previous prime is 2641361647. The next prime is 2641361659. The reversal of 2641361656 is 6561631462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2641361659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21066 + ... + 75673.

Almost surely, 2^2641361656 is an apocalyptic number.

It is an amenable number.

2641361656 is a deficient number, since it is larger than the sum of its proper divisors (2312693744).

2641361656 is a wasteful number, since it uses less digits than its factorization.

2641361656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100158 (or 100154 counting only the distinct ones).

The product of its digits is 155520, while the sum is 40.

The square root of 2641361656 is about 51394.1792034857. The cubic root of 2641361656 is about 1382.3222218092.

The spelling of 2641361656 in words is "two billion, six hundred forty-one million, three hundred sixty-one thousand, six hundred fifty-six".