82366841557 has 16 divisors (see below), whose sum is σ = 110590445952. Its totient is φ = 59244880320.

The previous prime is 82366841533. The next prime is 82366841569. The reversal of 82366841557 is 75514866328.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82366841557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82366841498 and 82366841507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82366841507) 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, 41141278 + ... + 41143279.

It is an arithmetic number, because the mean of its divisors is an integer number (6911902872).

Almost surely, 2^82366841557 is an apocalyptic number.

It is an amenable number.

82366841557 is a deficient number, since it is larger than the sum of its proper divisors (28223604395).

82366841557 is a wasteful number, since it uses less digits than its factorization.

82366841557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82284588.

The product of its digits is 9676800, while the sum is 55.

The spelling of 82366841557 in words is "eighty-two billion, three hundred sixty-six million, eight hundred forty-one thousand, five hundred fifty-seven".