2665633451 has 6 divisors (see below), whose sum is σ = 2886455340. Its totient is φ = 2460584568.

The previous prime is 2665633417. The next prime is 2665633469. The reversal of 2665633451 is 1543365662.

It is not a de Polignac number, because 2665633451 - 2⁶ = 2665633387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2665633399 and 2665633408.

It is not an unprimeable number, because it can be changed into a prime (2665633151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7886321 + ... + 7886658.

It is an arithmetic number, because the mean of its divisors is an integer number (481075890).

Almost surely, 2^2665633451 is an apocalyptic number.

2665633451 is a deficient number, since it is larger than the sum of its proper divisors (220821889).

2665633451 is a wasteful number, since it uses less digits than its factorization.

2665633451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15773005 (or 15772992 counting only the distinct ones).

The product of its digits is 388800, while the sum is 41.

The square root of 2665633451 is about 51629.7729125357. The cubic root of 2665633451 is about 1386.5434276326.

The spelling of 2665633451 in words is "two billion, six hundred sixty-five million, six hundred thirty-three thousand, four hundred fifty-one".