2651215564 has 6 divisors (see below), whose sum is σ = 4639627244. Its totient is φ = 1325607780.

The previous prime is 2651215531. The next prime is 2651215591. The reversal of 2651215564 is 4655121562.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331401942 + ... + 331401949.

Almost surely, 2^2651215564 is an apocalyptic number.

It is an amenable number.

2651215564 is a deficient number, since it is larger than the sum of its proper divisors (1988411680).

2651215564 is a wasteful number, since it uses less digits than its factorization.

2651215564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662803895 (or 662803893 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 2651215564 is about 51489.9559525933. The cubic root of 2651215564 is about 1384.0390600924.

The spelling of 2651215564 in words is "two billion, six hundred fifty-one million, two hundred fifteen thousand, five hundred sixty-four".