97159265280 has 1056 divisors, whose sum is σ = 424890385920. Its totient is φ = 19941949440.

The previous prime is 97159265261. The next prime is 97159265303. The reversal of 97159265280 is 8256295179.

97159265280 is a `hidden beast` number, since 97 + 1 + 5 + 9 + 26 + 528 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1056).

It is a congruent 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, 493194142 + ... + 493194338.

It is an arithmetic number, because the mean of its divisors is an integer number (402358320).

Almost surely, 2^97159265280 is an apocalyptic number.

97159265280 is a gapful number since it is divisible by the number (90) 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 97159265280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212445192960).

97159265280 is an abundant number, since it is smaller than the sum of its proper divisors (327731120640).

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

97159265280 is a wasteful number, since it uses less digits than its factorization.

97159265280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 97159265280 in words is "ninety-seven billion, one hundred fifty-nine million, two hundred sixty-five thousand, two hundred eighty".