82650998601 has 36 divisors (see below), whose sum is σ = 123339095308. Its totient is φ = 53295138432.

The previous prime is 82650998593. The next prime is 82650998603. The reversal of 82650998601 is 10689905628.

It is a happy number.

82650998601 is a `hidden beast` number, since 8 + 26 + 5 + 0 + 9 + 9 + 8 + 601 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 23175495225 + 59475503376 = 152235^2 + 243876^2 .

It is not a de Polignac number, because 82650998601 - 2³ = 82650998593 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82650998603) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9962211 + ... + 9970503.

Almost surely, 2^82650998601 is an apocalyptic number.

It is an amenable number.

82650998601 is a deficient number, since it is larger than the sum of its proper divisors (40688096707).

82650998601 is a wasteful number, since it uses less digits than its factorization.

82650998601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8682 (or 8506 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 82650998601 in words is "eighty-two billion, six hundred fifty million, nine hundred ninety-eight thousand, six hundred one".