97315565321 has 64 divisors (see below), whose sum is σ = 118056960000. Its totient is φ = 79379419392.

The previous prime is 97315565233. The next prime is 97315565329. The reversal of 97315565321 is 12356551379.

It is not a de Polignac number, because 97315565321 - 2¹⁴ = 97315548937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97315565329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26594390 + ... + 26598048.

It is an arithmetic number, because the mean of its divisors is an integer number (1844640000).

Almost surely, 2^97315565321 is an apocalyptic number.

It is an amenable number.

97315565321 is a deficient number, since it is larger than the sum of its proper divisors (20741394679).

97315565321 is a wasteful number, since it uses less digits than its factorization.

97315565321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3846.

The product of its digits is 850500, while the sum is 47.

The spelling of 97315565321 in words is "ninety-seven billion, three hundred fifteen million, five hundred sixty-five thousand, three hundred twenty-one".