345033665020 has 96 divisors (see below), whose sum is σ = 832735572480. Its totient is φ = 118764322560.

The previous prime is 345033664973. The next prime is 345033665029. The reversal of 345033665020 is 20566330543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345033665029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5078394 + ... + 5145886.

It is an arithmetic number, because the mean of its divisors is an integer number (8674328880).

Almost surely, 2^345033665020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345033665020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416367786240).

345033665020 is an abundant number, since it is smaller than the sum of its proper divisors (487701907460).

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

345033665020 is a wasteful number, since it uses less digits than its factorization.

345033665020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68755 (or 68753 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 37.

Adding to 345033665020 its reverse (20566330543), we get a palindrome (365599995563).

The spelling of 345033665020 in words is "three hundred forty-five billion, thirty-three million, six hundred sixty-five thousand, twenty".