645283610325144 has 96 divisors (see below), whose sum is σ = 1997316023433120. Its totient is φ = 184365858682368.

The previous prime is 645283610325127. The next prime is 645283610325161. The reversal of 645283610325144 is 441523016382546.

It is a happy number.

645283610325144 is a `hidden beast` number, since 6 + 4 + 5 + 2 + 8 + 3 + 610 + 3 + 2 + 5 + 14 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (645283610325127) and next prime (645283610325161).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105565294 + ... + 111510530.

It is an arithmetic number, because the mean of its divisors is an integer number (20805375244095).

Almost surely, 2^{645283610325144} is an apocalyptic number.

It is an amenable number.

645283610325144 is an abundant number, since it is smaller than the sum of its proper divisors (1352032413107976).

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

645283610325144 is a wasteful number, since it uses less digits than its factorization.

645283610325144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6160609 (or 6160602 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 54.

The spelling of 645283610325144 in words is "six hundred forty-five trillion, two hundred eighty-three billion, six hundred ten million, three hundred twenty-five thousand, one hundred forty-four".