8216740580 has 12 divisors (see below), whose sum is σ = 17255155260. Its totient is φ = 3286696224.

The previous prime is 8216740561. The next prime is 8216740591. The reversal of 8216740580 is 850476128.

It can be written as a sum of positive squares in 2 ways, for example, as 2976138916 + 5240601664 = 54554^2 + 72392^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205418495 + ... + 205418534.

It is an arithmetic number, because the mean of its divisors is an integer number (1437929605).

Almost surely, 2^8216740580 is an apocalyptic number.

It is an amenable number.

8216740580 is an abundant number, since it is smaller than the sum of its proper divisors (9038414680).

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

8216740580 is a wasteful number, since it uses less digits than its factorization.

8216740580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410837038 (or 410837036 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 8216740580 is about 90646.2386423176. The cubic root of 8216740580 is about 2017.9010138259.

The spelling of 8216740580 in words is "eight billion, two hundred sixteen million, seven hundred forty thousand, five hundred eighty".