82177140516 has 24 divisors (see below), whose sum is σ = 193443537504. Its totient is φ = 27149969280.

The previous prime is 82177140499. The next prime is 82177140523. The reversal of 82177140516 is 61504177128.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30299950 + ... + 30302661.

It is an arithmetic number, because the mean of its divisors is an integer number (8060147396).

Almost surely, 2^82177140516 is an apocalyptic number.

It is an amenable number.

82177140516 is an abundant number, since it is smaller than the sum of its proper divisors (111266396988).

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

82177140516 is a wasteful number, since it uses less digits than its factorization.

82177140516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60602731 (or 60602729 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 42.

The spelling of 82177140516 in words is "eighty-two billion, one hundred seventy-seven million, one hundred forty thousand, five hundred sixteen".