7655001666111 has 24 divisors (see below), whose sum is σ = 11063084505824. Its totient is φ = 5100630575040.

The previous prime is 7655001666107. The next prime is 7655001666139. The reversal of 7655001666111 is 1116661005567.

It is not a de Polignac number, because 7655001666111 - 2² = 7655001666107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7655001662111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157677501 + ... + 157726041.

Almost surely, 2^{7655001666111} is an apocalyptic number.

7655001666111 is a deficient number, since it is larger than the sum of its proper divisors (3408082839713).

7655001666111 is a wasteful number, since it uses less digits than its factorization.

7655001666111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57471 (or 57468 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The spelling of 7655001666111 in words is "seven trillion, six hundred fifty-five billion, one million, six hundred sixty-six thousand, one hundred eleven".