2251551662331 has 16 divisors (see below), whose sum is σ = 3038415394560. Its totient is φ = 1482930419040.

The previous prime is 2251551662309. The next prime is 2251551662333. The reversal of 2251551662331 is 1332661551522.

It is not a de Polignac number, because 2251551662331 - 2¹⁵ = 2251551629563 is a prime.

It is a super-2 number, since 2×2251551662331² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2251551662333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8523801 + ... + 8783978.

It is an arithmetic number, because the mean of its divisors is an integer number (189900962160).

Almost surely, 2^{2251551662331} is an apocalyptic number.

2251551662331 is a deficient number, since it is larger than the sum of its proper divisors (786863732229).

2251551662331 is a wasteful number, since it uses less digits than its factorization.

2251551662331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17308306.

The product of its digits is 324000, while the sum is 42.

The spelling of 2251551662331 in words is "two trillion, two hundred fifty-one billion, five hundred fifty-one million, six hundred sixty-two thousand, three hundred thirty-one".