345601661863 has 2 divisors, whose sum is σ = 345601661864. Its totient is φ = 345601661862.

The previous prime is 345601661813. The next prime is 345601661953. The reversal of 345601661863 is 368166106543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345601661863 - 2²⁵ = 345568107431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345601661813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172800830931 + 172800830932.

It is an arithmetic number, because the mean of its divisors is an integer number (172800830932).

Almost surely, 2^345601661863 is an apocalyptic number.

345601661863 is a deficient number, since it is larger than the sum of its proper divisors (1).

345601661863 is an equidigital number, since it uses as much as digits as its factorization.

345601661863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 345601661863 in words is "three hundred forty-five billion, six hundred one million, six hundred sixty-one thousand, eight hundred sixty-three".