645322105355 has 8 divisors (see below), whose sum is σ = 784188888000. Its totient is φ = 509722776576.

The previous prime is 645322105277. The next prime is 645322105361. The reversal of 645322105355 is 553501223546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 645322105355 - 2¹⁶ = 645322039819 is a prime.

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, 816863030 + ... + 816863819.

It is an arithmetic number, because the mean of its divisors is an integer number (98023611000).

Almost surely, 2^645322105355 is an apocalyptic number.

645322105355 is a deficient number, since it is larger than the sum of its proper divisors (138866782645).

645322105355 is a wasteful number, since it uses less digits than its factorization.

645322105355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633726933.

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 645322105355 in words is "six hundred forty-five billion, three hundred twenty-two million, one hundred five thousand, three hundred fifty-five".