88665872681 has 4 divisors (see below), whose sum is σ = 88763201664. Its totient is φ = 88568543700.

The previous prime is 88665872653. The next prime is 88665872683. The reversal of 88665872681 is 18627856688.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 88665872681 - 2³⁴ = 71486003497 is a prime.

It is a super-2 number, since 2×88665872681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88665872683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48663125 + ... + 48664946.

It is an arithmetic number, because the mean of its divisors is an integer number (22190800416).

Almost surely, 2^88665872681 is an apocalyptic number.

It is an amenable number.

88665872681 is a deficient number, since it is larger than the sum of its proper divisors (97328983).

88665872681 is an equidigital number, since it uses as much as digits as its factorization.

88665872681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97328982.

The product of its digits is 61931520, while the sum is 65.

The spelling of 88665872681 in words is "eighty-eight billion, six hundred sixty-five million, eight hundred seventy-two thousand, six hundred eighty-one".