645232306601334 has 16 divisors (see below), whose sum is σ = 1290465049190400. Its totient is φ = 215077362869160.

The previous prime is 645232306601297. The next prime is 645232306601359. The reversal of 645232306601334 is 433106603232546.

It is a congruent number.

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, 2963467 + ... + 36045065.

It is an arithmetic number, because the mean of its divisors is an integer number (80654065574400).

Almost surely, 2^{645232306601334} is an apocalyptic number.

645232306601334 is an abundant number, since it is smaller than the sum of its proper divisors (645232742589066).

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

645232306601334 is a wasteful number, since it uses less digits than its factorization.

645232306601334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36332315.

The product of its (nonzero) digits is 5598720, while the sum is 48.

The spelling of 645232306601334 in words is "six hundred forty-five trillion, two hundred thirty-two billion, three hundred six million, six hundred one thousand, three hundred thirty-four".