2665215120 has 160 divisors (see below), whose sum is σ = 9208874880. Its totient is φ = 633692160.

The previous prime is 2665215107. The next prime is 2665215131. The reversal of 2665215120 is 215125662.

It is a super-2 number, since 2×2665215120² = 14206743271753228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 60330 + ... + 94710.

It is an arithmetic number, because the mean of its divisors is an integer number (57555468).

Almost surely, 2^2665215120 is an apocalyptic number.

2665215120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2665215120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4604437440).

2665215120 is an abundant number, since it is smaller than the sum of its proper divisors (6543659760).

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

2665215120 is a wasteful number, since it uses less digits than its factorization.

2665215120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34433 (or 34427 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 2665215120 is about 51625.7214961689. The cubic root of 2665215120 is about 1386.4708914726.

The spelling of 2665215120 in words is "two billion, six hundred sixty-five million, two hundred fifteen thousand, one hundred twenty".