8166870682776 has 192 divisors, whose sum is σ = 24010687340640. Its totient is φ = 2492785152000.

The previous prime is 8166870682709. The next prime is 8166870682801. The reversal of 8166870682776 is 6772860786618.

It is a super-2 number, since 2×8166870682776² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 382673866 + ... + 382695206.

Almost surely, 2^{8166870682776} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8166870682776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12005343670320).

8166870682776 is an abundant number, since it is smaller than the sum of its proper divisors (15843816657864).

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

8166870682776 is a wasteful number, since it uses less digits than its factorization.

8166870682776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24618 (or 24611 counting only the distinct ones).

The product of its (nonzero) digits is 455196672, while the sum is 72.

The spelling of 8166870682776 in words is "eight trillion, one hundred sixty-six billion, eight hundred seventy million, six hundred eighty-two thousand, seven hundred seventy-six".