2159266680 has 128 divisors (see below), whose sum is σ = 7510579200. Its totient is φ = 550763136.

The previous prime is 2159266667. The next prime is 2159266699. The reversal of 2159266680 is 866629512.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18624 + ... + 68303.

It is an arithmetic number, because the mean of its divisors is an integer number (58676400).

Almost surely, 2^2159266680 is an apocalyptic number.

2159266680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2159266680 is an abundant number, since it is smaller than the sum of its proper divisors (5351312520).

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

2159266680 is a wasteful number, since it uses less digits than its factorization.

2159266680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86970 (or 86960 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 2159266680 is about 46467.9102176975. The cubic root of 2159266680 is about 1292.5145113458.

The spelling of 2159266680 in words is "two billion, one hundred fifty-nine million, two hundred sixty-six thousand, six hundred eighty".