345165220554 has 32 divisors (see below), whose sum is σ = 860671719936. Its totient is φ = 89653303920.

The previous prime is 345165220529. The next prime is 345165220559. The reversal of 345165220554 is 455022561543.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (345165220559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373554972 + ... + 373555895.

It is an arithmetic number, because the mean of its divisors is an integer number (26895991248).

Almost surely, 2^345165220554 is an apocalyptic number.

345165220554 is an abundant number, since it is smaller than the sum of its proper divisors (515506499382).

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

345165220554 is a wasteful number, since it uses less digits than its factorization.

345165220554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747110890.

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 345165220554 in words is "three hundred forty-five billion, one hundred sixty-five million, two hundred twenty thousand, five hundred fifty-four".