2665232562916 has 81 divisors (see below), whose sum is σ = 5964295809801. Its totient is φ = 1038304344000.

The previous prime is 2665232562821. The next prime is 2665232562959. The reversal of 2665232562916 is 6192652325662.

It is a happy number.

The square root of 2665232562916 is 1632554.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2278149497316 + 387083065600 = 1509354^2 + 622160^2 .

It is a super-2 number, since 2×2665232562916² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 251408016 + ... + 251418616.

Almost surely, 2^{2665232562916} is an apocalyptic number.

2665232562916 is the 1632554-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2665232562916

2665232562916 is an abundant number, since it is smaller than the sum of its proper divisors (3299063246885).

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

2665232562916 is an equidigital number, since it uses as much as digits as its factorization.

2665232562916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21242 (or 10621 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 55.

The spelling of 2665232562916 in words is "two trillion, six hundred sixty-five billion, two hundred thirty-two million, five hundred sixty-two thousand, nine hundred sixteen".