97166586825 has 96 divisors (see below), whose sum is σ = 222543851520. Its totient is φ = 40380897600.

The previous prime is 97166586799. The next prime is 97166586931. The reversal of 97166586825 is 52868566179.

It is not a de Polignac number, because 97166586825 - 2⁷ = 97166586697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 882769 + ... + 986718.

It is an arithmetic number, because the mean of its divisors is an integer number (2318165120).

Almost surely, 2^97166586825 is an apocalyptic number.

It is an amenable number.

97166586825 is an abundant number, since it is smaller than the sum of its proper divisors (125377264695).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97166586825 is a wasteful number, since it uses less digits than its factorization.

97166586825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869524 (or 1869513 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 63.

The spelling of 97166586825 in words is "ninety-seven billion, one hundred sixty-six million, five hundred eighty-six thousand, eight hundred twenty-five".