2641611646 has 8 divisors (see below), whose sum is σ = 3963780000. Its totient is φ = 1320351648.

The previous prime is 2641611631. The next prime is 2641611659. The reversal of 2641611646 is 6461161462.

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

It is a super-2 number, since 2×2641611646² = 13956224176565658632, which 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 3 ways as a sum of consecutive naturals, for example, 219771 + ... + 231478.

It is an arithmetic number, because the mean of its divisors is an integer number (495472500).

Almost surely, 2^2641611646 is an apocalyptic number.

2641611646 is a deficient number, since it is larger than the sum of its proper divisors (1322168354).

2641611646 is a wasteful number, since it uses less digits than its factorization.

2641611646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454178.

The product of its digits is 41472, while the sum is 37.

The square root of 2641611646 is about 51396.6112307027. The cubic root of 2641611646 is about 1382.3658301037.

It can be divided in two parts, 264 and 1611646, that added together give a triangular number (1611910 = T₁₇₉₅).

The spelling of 2641611646 in words is "two billion, six hundred forty-one million, six hundred eleven thousand, six hundred forty-six".