2251660319 has 4 divisors (see below), whose sum is σ = 2384110944. Its totient is φ = 2119209696.

The previous prime is 2251660309. The next prime is 2251660331. The reversal of 2251660319 is 9130661522.

2251660319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2251660319 - 2¹² = 2251656223 is a prime.

It is a super-2 number, since 2×2251660319² = 10139948384318363522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251660309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66225287 + ... + 66225320.

It is an arithmetic number, because the mean of its divisors is an integer number (596027736).

Almost surely, 2^2251660319 is an apocalyptic number.

2251660319 is a deficient number, since it is larger than the sum of its proper divisors (132450625).

2251660319 is a wasteful number, since it uses less digits than its factorization.

2251660319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132450624.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 2251660319 is about 47451.6629740202. The cubic root of 2251660319 is about 1310.6929339100.

The spelling of 2251660319 in words is "two billion, two hundred fifty-one million, six hundred sixty thousand, three hundred nineteen".