2664820140 has 48 divisors (see below), whose sum is σ = 7702195200. Its totient is φ = 687695040.

The previous prime is 2664820139. The next prime is 2664820157. The reversal of 2664820140 is 410284662.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714490 + ... + 718209.

It is an arithmetic number, because the mean of its divisors is an integer number (160462400).

Almost surely, 2^2664820140 is an apocalyptic number.

2664820140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2664820140 is an abundant number, since it is smaller than the sum of its proper divisors (5037375060).

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

2664820140 is a wasteful number, since it uses less digits than its factorization.

2664820140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432742 (or 1432740 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 2664820140 is about 51621.8959357364. The cubic root of 2664820140 is about 1386.4023972732.

The spelling of 2664820140 in words is "two billion, six hundred sixty-four million, eight hundred twenty thousand, one hundred forty".