974651167661 has 16 divisors (see below), whose sum is σ = 997534906368. Its totient is φ = 952110936000.

The previous prime is 974651167649. The next prime is 974651167667. The reversal of 974651167661 is 166761156479.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 974651167661 - 2⁶ = 974651167597 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 974651167661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (974651167667) 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, 2111786 + ... + 2531588.

It is an arithmetic number, because the mean of its divisors is an integer number (62345931648).

Almost surely, 2^974651167661 is an apocalyptic number.

It is an amenable number.

974651167661 is a deficient number, since it is larger than the sum of its proper divisors (22883738707).

974651167661 is a wasteful number, since it uses less digits than its factorization.

974651167661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420212.

The product of its digits is 11430720, while the sum is 59.

The spelling of 974651167661 in words is "nine hundred seventy-four billion, six hundred fifty-one million, one hundred sixty-seven thousand, six hundred sixty-one".