346220016431 has 2 divisors, whose sum is σ = 346220016432. Its totient is φ = 346220016430.

The previous prime is 346220016407. The next prime is 346220016487. The reversal of 346220016431 is 134610022643.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-346220016431 is a prime.

It is a super-2 number, since 2×346220016431² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346220016931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173110008215 + 173110008216.

It is an arithmetic number, because the mean of its divisors is an integer number (173110008216).

Almost surely, 2^346220016431 is an apocalyptic number.

346220016431 is a deficient number, since it is larger than the sum of its proper divisors (1).

346220016431 is an equidigital number, since it uses as much as digits as its factorization.

346220016431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 346220016431 in words is "three hundred forty-six billion, two hundred twenty million, sixteen thousand, four hundred thirty-one".