97504081155 has 256 divisors, whose sum is σ = 206841600000. Its totient is φ = 43138013184.

The previous prime is 97504081151. The next prime is 97504081163. The reversal of 97504081155 is 55118040579.

97504081155 is a `hidden beast` number, since 97 + 5 + 0 + 408 + 1 + 155 = 666.

It is not a de Polignac number, because 97504081155 - 2² = 97504081151 is a prime.

It is a super-2 number, since 2×97504081155² (a number of 23 digits) contains 22 as substring.

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

Together with 109337518845 it forms an amicable pair .

It is a self number, because there is not a number n which added to its sum of digits gives 97504081155.

It is not an unprimeable number, because it can be changed into a prime (97504081151) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 57052441 + ... + 57054149.

It is an arithmetic number, because the mean of its divisors is an integer number (807975000).

Almost surely, 2^97504081155 is an apocalyptic number.

97504081155 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

97504081155 is an abundant number, since it is smaller than the sum of its proper divisors (109337518845).

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

97504081155 is a wasteful number, since it uses less digits than its factorization.

97504081155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843 (or 1837 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 45.

The spelling of 97504081155 in words is "ninety-seven billion, five hundred four million, eighty-one thousand, one hundred fifty-five".