82215340144 has 40 divisors (see below), whose sum is σ = 182972405088. Its totient is φ = 35056277760.

The previous prime is 82215340133. The next prime is 82215340147. The reversal of 82215340144 is 44104351228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82215340147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1841047 + ... + 1885174.

Almost surely, 2^82215340144 is an apocalyptic number.

It is an amenable number.

82215340144 is an abundant number, since it is smaller than the sum of its proper divisors (100757064944).

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

82215340144 is a wasteful number, since it uses less digits than its factorization.

82215340144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3726433 (or 3726427 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The spelling of 82215340144 in words is "eighty-two billion, two hundred fifteen million, three hundred forty thousand, one hundred forty-four".