88666091280 has 480 divisors, whose sum is σ = 330035876352. Its totient is φ = 21197721600.

The previous prime is 88666091263. The next prime is 88666091291. The reversal of 88666091280 is 8219066688.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 47388745 + ... + 47390615.

Almost surely, 2^88666091280 is an apocalyptic number.

88666091280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88666091280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165017938176).

88666091280 is an abundant number, since it is smaller than the sum of its proper divisors (241369785072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88666091280 is a wasteful number, since it uses less digits than its factorization.

88666091280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047 (or 2038 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 88666091280 in words is "eighty-eight billion, six hundred sixty-six million, ninety-one thousand, two hundred eighty".