6631261261215 has 32 divisors (see below), whose sum is σ = 10615887599616. Its totient is φ = 3534716739840.

The previous prime is 6631261261171. The next prime is 6631261261217. The reversal of 6631261261215 is 5121621621366.

It is not a de Polignac number, because 6631261261215 - 2⁹ = 6631261260703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6631261261217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226099882 + ... + 226129208.

It is an arithmetic number, because the mean of its divisors is an integer number (331746487488).

Almost surely, 2^{6631261261215} is an apocalyptic number.

6631261261215 is a deficient number, since it is larger than the sum of its proper divisors (3984626338401).

6631261261215 is a wasteful number, since it uses less digits than its factorization.

6631261261215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37159.

The product of its digits is 155520, while the sum is 42.

The spelling of 6631261261215 in words is "six trillion, six hundred thirty-one billion, two hundred sixty-one million, two hundred sixty-one thousand, two hundred fifteen".