645960468303 has 16 divisors (see below), whose sum is σ = 989977730400. Its totient is φ = 415790645760.

The previous prime is 645960468281. The next prime is 645960468313. The reversal of 645960468303 is 303864069546.

645960468303 is a `hidden beast` number, since 6 + 4 + 596 + 0 + 46 + 8 + 3 + 0 + 3 = 666.

It is not a de Polignac number, because 645960468303 - 2¹³ = 645960460111 is a prime.

It is a super-2 number, since 2×645960468303² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 645960468303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645960468313) 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, 412489938 + ... + 412491503.

It is an arithmetic number, because the mean of its divisors is an integer number (61873608150).

Almost surely, 2^645960468303 is an apocalyptic number.

645960468303 is a deficient number, since it is larger than the sum of its proper divisors (344017262097).

645960468303 is a wasteful number, since it uses less digits than its factorization.

645960468303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824981479 (or 824981473 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 54.

The spelling of 645960468303 in words is "six hundred forty-five billion, nine hundred sixty million, four hundred sixty-eight thousand, three hundred three".