97115901552 has 120 divisors (see below), whose sum is σ = 279339856224. Its totient is φ = 31473971712.

The previous prime is 97115901473. The next prime is 97115901557. The reversal of 97115901552 is 25510951179.

It is a happy number.

97115901552 is a `hidden beast` number, since 9 + 7 + 1 + 1 + 5 + 90 + 1 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 97115901498 and 97115901507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97115901557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8215198 + ... + 8227010.

Almost surely, 2^97115901552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97115901552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139669928112).

97115901552 is an abundant number, since it is smaller than the sum of its proper divisors (182223954672).

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

97115901552 is a wasteful number, since it uses less digits than its factorization.

97115901552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13407 (or 13398 counting only the distinct ones).

The product of its (nonzero) digits is 141750, while the sum is 45.

The spelling of 97115901552 in words is "ninety-seven billion, one hundred fifteen million, nine hundred one thousand, five hundred fifty-two".