97670565996965 has 16 divisors (see below), whose sum is σ = 129631786557168. Its totient is φ = 70176606253056.

The previous prime is 97670565996961. The next prime is 97670565996977. The reversal of 97670565996965 is 56969956507679.

It is a Cunningham number, because it is equal to 9882842²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 10273608331009 + 87396957665956 = 3205247^2 + 9348634^2 .

It is a cyclic number.

It is not a de Polignac number, because 97670565996965 - 2² = 97670565996961 is a prime.

It is a super-2 number, since 2×97670565996965² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97670565996961) 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, 20305728572 + ... + 20305733381.

It is an arithmetic number, because the mean of its divisors is an integer number (8101986659823).

Almost surely, 2^{97670565996965} is an apocalyptic number.

It is an amenable number.

97670565996965 is a deficient number, since it is larger than the sum of its proper divisors (31961220560203).

97670565996965 is a wasteful number, since it uses less digits than its factorization.

97670565996965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40611462008.

The product of its (nonzero) digits is 52081218000, while the sum is 89.

The spelling of 97670565996965 in words is "ninety-seven trillion, six hundred seventy billion, five hundred sixty-five million, nine hundred ninety-six thousand, nine hundred sixty-five".