82155440124 has 36 divisors (see below), whose sum is σ = 210515506656. Its totient is φ = 27010006848.

The previous prime is 82155440117. The next prime is 82155440131. The reversal of 82155440124 is 42104455128.

82155440124 is a `hidden beast` number, since 82 + 1 + 554 + 4 + 0 + 1 + 24 = 666.

It is an interprime number because it is at equal distance from previous prime (82155440117) and next prime (82155440131).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15628164 + ... + 15633419.

Almost surely, 2^82155440124 is an apocalyptic number.

It is an amenable number.

82155440124 is an abundant number, since it is smaller than the sum of its proper divisors (128360066532).

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

82155440124 is a wasteful number, since it uses less digits than its factorization.

82155440124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31261666 (or 31261661 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The spelling of 82155440124 in words is "eighty-two billion, one hundred fifty-five million, four hundred forty thousand, one hundred twenty-four".