645082180150 has 12 divisors (see below), whose sum is σ = 1199852855172. Its totient is φ = 258032872040.

The previous prime is 645082180109. The next prime is 645082180157. The reversal of 645082180150 is 51081280546.

It is a happy number.

645082180150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×645082180150² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645082180157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6450821752 + ... + 6450821851.

It is an arithmetic number, because the mean of its divisors is an integer number (99987737931).

Almost surely, 2^645082180150 is an apocalyptic number.

645082180150 is a deficient number, since it is larger than the sum of its proper divisors (554770675022).

645082180150 is a wasteful number, since it uses less digits than its factorization.

645082180150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12901643615 (or 12901643610 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 40.

The spelling of 645082180150 in words is "six hundred forty-five billion, eighty-two million, one hundred eighty thousand, one hundred fifty".