652166120531640 has 1024 divisors, whose sum is σ = 2486723626598400. Its totient is φ = 134423475609600.

The previous prime is 652166120531617. The next prime is 652166120531699. The reversal of 652166120531640 is 46135021661256.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 652166120531640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 17166313045 + ... + 17166351035.

It is an arithmetic number, because the mean of its divisors is an integer number (2428441041600).

Almost surely, 2^{652166120531640} is an apocalyptic number.

652166120531640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 652166120531640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1243361813299200).

652166120531640 is an abundant number, since it is smaller than the sum of its proper divisors (1834557506066760).

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

652166120531640 is a wasteful number, since it uses less digits than its factorization.

652166120531640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39508 (or 39504 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 652166120531640 in words is "six hundred fifty-two trillion, one hundred sixty-six billion, one hundred twenty million, five hundred thirty-one thousand, six hundred forty".