345110021604 has 48 divisors (see below), whose sum is σ = 933630983040. Its totient is φ = 110035078560.

The previous prime is 345110021591. The next prime is 345110021609. The reversal of 345110021604 is 406120011543.

It is a happy number.

345110021604 is a `hidden beast` number, since 3 + 4 + 51 + 1 + 0 + 0 + 2 + 1 + 604 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (345110021609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69464107 + ... + 69469074.

It is an arithmetic number, because the mean of its divisors is an integer number (19450645480).

Almost surely, 2^345110021604 is an apocalyptic number.

It is an amenable number.

345110021604 is an abundant number, since it is smaller than the sum of its proper divisors (588520961436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345110021604 is a wasteful number, since it uses less digits than its factorization.

345110021604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138933217 (or 138933209 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The spelling of 345110021604 in words is "three hundred forty-five billion, one hundred ten million, twenty-one thousand, six hundred four".