88668573821661 has 16 divisors (see below), whose sum is σ = 119845779823616. Its totient is φ = 58301895419136.

The previous prime is 88668573821651. The next prime is 88668573821689. The reversal of 88668573821661 is 16612837586688.

It is not a de Polignac number, because 88668573821661 - 2⁷ = 88668573821533 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 (88668573821651) 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, 15325401 + ... + 20302833.

It is an arithmetic number, because the mean of its divisors is an integer number (7490361238976).

Almost surely, 2^{88668573821661} is an apocalyptic number.

It is an amenable number.

88668573821661 is a deficient number, since it is larger than the sum of its proper divisors (31177206001955).

88668573821661 is a wasteful number, since it uses less digits than its factorization.

88668573821661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5058852.

The product of its digits is 1114767360, while the sum is 75.

The spelling of 88668573821661 in words is "eighty-eight trillion, six hundred sixty-eight billion, five hundred seventy-three million, eight hundred twenty-one thousand, six hundred sixty-one".