6615612026761 has 16 divisors (see below), whose sum is σ = 7015184342208. Its totient is φ = 6217201267200.

The previous prime is 6615612026743. The next prime is 6615612026767. The reversal of 6615612026761 is 1676202165166.

It is not a de Polignac number, because 6615612026761 - 2⁷ = 6615612026633 is a prime.

It is a super-2 number, since 2×6615612026761² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6615612026767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56095546 + ... + 56213356.

It is an arithmetic number, because the mean of its divisors is an integer number (438449021388).

Almost surely, 2^{6615612026761} is an apocalyptic number.

It is an amenable number.

6615612026761 is a deficient number, since it is larger than the sum of its proper divisors (399572315447).

6615612026761 is a wasteful number, since it uses less digits than its factorization.

6615612026761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122712.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 6615612026761 in words is "six trillion, six hundred fifteen billion, six hundred twelve million, twenty-six thousand, seven hundred sixty-one".