2315611656643 has 4 divisors (see below), whose sum is σ = 2325220004008. Its totient is φ = 2306003309280.

The previous prime is 2315611656629. The next prime is 2315611656653. The reversal of 2315611656643 is 3466561165132.

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 2315611656643 - 2²⁹ = 2315074785731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2315611656653) 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, 4804173321 + ... + 4804173802.

It is an arithmetic number, because the mean of its divisors is an integer number (581305001002).

Almost surely, 2^{2315611656643} is an apocalyptic number.

2315611656643 is a deficient number, since it is larger than the sum of its proper divisors (9608347365).

2315611656643 is an equidigital number, since it uses as much as digits as its factorization.

2315611656643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9608347364.

The product of its digits is 2332800, while the sum is 49.

The spelling of 2315611656643 in words is "two trillion, three hundred fifteen billion, six hundred eleven million, six hundred fifty-six thousand, six hundred forty-three".