97739966556568 has 48 divisors (see below), whose sum is σ = 213203697216480. Its totient is φ = 41884457896512.

The previous prime is 97739966556517. The next prime is 97739966556587. The reversal of 97739966556568 is 86565566993779.

97739966556568 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×97739966556568² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8187471 + ... + 16202302.

It is an arithmetic number, because the mean of its divisors is an integer number (4441743692010).

Almost surely, 2^{97739966556568} is an apocalyptic number.

97739966556568 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

97739966556568 is an abundant number, since it is smaller than the sum of its proper divisors (115463730659912).

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

97739966556568 is a wasteful number, since it uses less digits than its factorization.

97739966556568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24400016 (or 24400005 counting only the distinct ones).

The product of its digits is 138883248000, while the sum is 91.

The spelling of 97739966556568 in words is "ninety-seven trillion, seven hundred thirty-nine billion, nine hundred sixty-six million, five hundred fifty-six thousand, five hundred sixty-eight".