97657115558 has 24 divisors (see below), whose sum is σ = 155763276048. Its totient is φ = 45817099328.

The previous prime is 97657115551. The next prime is 97657115579. The reversal of 97657115558 is 85551175679.

It is a super-3 number, since 3×97657115558³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97657115497 and 97657115506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97657115551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15426938 + ... + 15433266.

It is an arithmetic number, because the mean of its divisors is an integer number (6490136502).

Almost surely, 2^97657115558 is an apocalyptic number.

97657115558 is a deficient number, since it is larger than the sum of its proper divisors (58106160490).

97657115558 is an frugal number, since it uses more digits than its factorization.

97657115558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12736 (or 6407 counting only the distinct ones).

The product of its digits is 13230000, while the sum is 59.

The spelling of 97657115558 in words is "ninety-seven billion, six hundred fifty-seven million, one hundred fifteen thousand, five hundred fifty-eight".