97155541351872 has 84 divisors (see below), whose sum is σ = 278490933223776. Its totient is φ = 32383771453440.

The previous prime is 97155541351867. The next prime is 97155541351873. The reversal of 97155541351872 is 27815314555179.

97155541351872 is a `hidden beast` number, since 9 + 7 + 1 + 5 + 5 + 5 + 41 + 3 + 518 + 72 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97155541351873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9623097 + ... + 16938567.

It is an arithmetic number, because the mean of its divisors is an integer number (3315368252664).

Almost surely, 2^{97155541351872} is an apocalyptic number.

It is an amenable number.

97155541351872 is an abundant number, since it is smaller than the sum of its proper divisors (181335391871904).

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

97155541351872 is a wasteful number, since it uses less digits than its factorization.

97155541351872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7338546 (or 7338533 counting only the distinct ones).

The product of its digits is 52920000, while the sum is 63.

The spelling of 97155541351872 in words is "ninety-seven trillion, one hundred fifty-five billion, five hundred forty-one million, three hundred fifty-one thousand, eight hundred seventy-two".