345220757612 has 24 divisors (see below), whose sum is σ = 604909000080. Its totient is φ = 172389708800.

The previous prime is 345220757593. The next prime is 345220757669. The reversal of 345220757612 is 216757022543.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19730564 + ... + 19748052.

It is an arithmetic number, because the mean of its divisors is an integer number (25204541670).

Almost surely, 2^345220757612 is an apocalyptic number.

It is an amenable number.

345220757612 is a deficient number, since it is larger than the sum of its proper divisors (259688242468).

345220757612 is a wasteful number, since it uses less digits than its factorization.

345220757612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23521 (or 23519 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 345220757612 in words is "three hundred forty-five billion, two hundred twenty million, seven hundred fifty-seven thousand, six hundred twelve".