97659699664121 has 16 divisors (see below), whose sum is σ = 115350419543040. Its totient is φ = 80910327867840.

The previous prime is 97659699664039. The next prime is 97659699664141. The reversal of 97659699664121 is 12146699695679.

It is a cyclic number.

It is not a de Polignac number, because 97659699664121 - 2⁴² = 93261653153017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97659699664141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271258406 + ... + 271618191.

It is an arithmetic number, because the mean of its divisors is an integer number (7209401221440).

Almost surely, 2^{97659699664121} is an apocalyptic number.

It is an amenable number.

97659699664121 is a deficient number, since it is larger than the sum of its proper divisors (17690719878919).

97659699664121 is a wasteful number, since it uses less digits than its factorization.

97659699664121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542877464.

The product of its digits is 2380855680, while the sum is 80.

The spelling of 97659699664121 in words is "ninety-seven trillion, six hundred fifty-nine billion, six hundred ninety-nine million, six hundred sixty-four thousand, one hundred twenty-one".