97656260645 has 8 divisors (see below), whose sum is σ = 117199211640. Its totient is φ = 78117209280.

The previous prime is 97656260641. The next prime is 97656260651. The reversal of 97656260645 is 54606265679.

It can be written as a sum of positive squares in 4 ways, for example, as 681940996 + 96974319649 = 26114^2 + 311407^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97656260645 - 2² = 97656260641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97656260641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 919526 + ... + 1020215.

It is an arithmetic number, because the mean of its divisors is an integer number (14649901455).

Almost surely, 2^97656260645 is an apocalyptic number.

It is an amenable number.

97656260645 is a deficient number, since it is larger than the sum of its proper divisors (19542950995).

97656260645 is a wasteful number, since it uses less digits than its factorization.

97656260645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949815.

The product of its (nonzero) digits is 16329600, while the sum is 56.

The spelling of 97656260645 in words is "ninety-seven billion, six hundred fifty-six million, two hundred sixty thousand, six hundred forty-five".