645624543363360 has 192 divisors, whose sum is σ = 2218720084527744. Its totient is φ = 156506618880000.

The previous prime is 645624543363323. The next prime is 645624543363461. The reversal of 645624543363360 is 63363345426546.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 645624543363294 and 645624543363303.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95122860 + ... + 101683860.

It is an arithmetic number, because the mean of its divisors is an integer number (11555833773582).

Almost surely, 2^{645624543363360} is an apocalyptic number.

645624543363360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

645624543363360 is an abundant number, since it is smaller than the sum of its proper divisors (1573095541164384).

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

645624543363360 is a wasteful number, since it uses less digits than its factorization.

645624543363360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6579667 (or 6579659 counting only the distinct ones).

The product of its (nonzero) digits is 335923200, while the sum is 60.

The spelling of 645624543363360 in words is "six hundred forty-five trillion, six hundred twenty-four billion, five hundred forty-three million, three hundred sixty-three thousand, three hundred sixty".