82566117525772 has 6 divisors (see below), whose sum is σ = 144490705670108. Its totient is φ = 41283058762884.

The previous prime is 82566117525757. The next prime is 82566117525821. The reversal of 82566117525772 is 27752571166528.

It is a super-2 number, since 2×82566117525772² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10320764690718 + ... + 10320764690725.

Almost surely, 2^{82566117525772} is an apocalyptic number.

It is an amenable number.

82566117525772 is a deficient number, since it is larger than the sum of its proper divisors (61924588144336).

82566117525772 is a wasteful number, since it uses less digits than its factorization.

82566117525772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20641529381447 (or 20641529381445 counting only the distinct ones).

The product of its digits is 98784000, while the sum is 64.

The spelling of 82566117525772 in words is "eighty-two trillion, five hundred sixty-six billion, one hundred seventeen million, five hundred twenty-five thousand, seven hundred seventy-two".