97616661679 has 4 divisors (see below), whose sum is σ = 97628056776. Its totient is φ = 97605266584.

The previous prime is 97616661671. The next prime is 97616661683.

97616661679 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97616661679 - 2³ = 97616661671 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97616661679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97616661671) 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 3 ways as a sum of consecutive naturals, for example, 5684689 + ... + 5701834.

It is an arithmetic number, because the mean of its divisors is an integer number (24407014194).

Almost surely, 2^97616661679 is an apocalyptic number.

97616661679 is a deficient number, since it is larger than the sum of its proper divisors (11395097).

97616661679 is a wasteful number, since it uses less digits than its factorization.

97616661679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11395096.

The product of its digits is 30862944, while the sum is 64.

The spelling of 97616661679 in words is "ninety-seven billion, six hundred sixteen million, six hundred sixty-one thousand, six hundred seventy-nine".