88197005520 has 240 divisors, whose sum is σ = 330794161152. Its totient is φ = 21709969920.

The previous prime is 88197005503. The next prime is 88197005527. The reversal of 88197005520 is 2550079188.

It is a happy number.

88197005520 is a `hidden beast` number, since 8 + 8 + 1 + 97 + 0 + 0 + 552 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88197005527) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78225 + ... + 427215.

Almost surely, 2^88197005520 is an apocalyptic number.

88197005520 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 88197005520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165397080576).

88197005520 is an abundant number, since it is smaller than the sum of its proper divisors (242597155632).

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

88197005520 is a wasteful number, since it uses less digits than its factorization.

88197005520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349032 (or 349014 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The spelling of 88197005520 in words is "eighty-eight billion, one hundred ninety-seven million, five thousand, five hundred twenty".