345203917816 has 32 divisors (see below), whose sum is σ = 684651036960. Its totient is φ = 162835909632.

The previous prime is 345203917813. The next prime is 345203917901. The reversal of 345203917816 is 618719302543.

It is a self number, because there is not a number n which added to its sum of digits gives 345203917816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345203917813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12836625 + ... + 12863488.

It is an arithmetic number, because the mean of its divisors is an integer number (21395344905).

It is a 1-persistent number, because it is pandigital, but 2⋅345203917816 = 690407835632 is not.

Almost surely, 2^345203917816 is an apocalyptic number.

It is an amenable number.

345203917816 is a deficient number, since it is larger than the sum of its proper divisors (339447119144).

345203917816 is a wasteful number, since it uses less digits than its factorization.

345203917816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25700215 (or 25700211 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 345203917816 in words is "three hundred forty-five billion, two hundred three million, nine hundred seventeen thousand, eight hundred sixteen".