2315356665451 has 4 divisors (see below), whose sum is σ = 2437217542600. Its totient is φ = 2193495788304.

The previous prime is 2315356665449. The next prime is 2315356665491. The reversal of 2315356665451 is 1545666535132.

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 2315356665451 - 2¹ = 2315356665449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2315356665491) 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, 60930438546 + ... + 60930438583.

It is an arithmetic number, because the mean of its divisors is an integer number (609304385650).

Almost surely, 2^{2315356665451} is an apocalyptic number.

2315356665451 is a deficient number, since it is larger than the sum of its proper divisors (121860877149).

2315356665451 is a wasteful number, since it uses less digits than its factorization.

2315356665451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121860877148.

The product of its digits is 9720000, while the sum is 52.

It can be divided in two parts, 231535 and 6665451, that added together give a palindrome (6896986).

The spelling of 2315356665451 in words is "two trillion, three hundred fifteen billion, three hundred fifty-six million, six hundred sixty-five thousand, four hundred fifty-one".