652495011840 has 1920 divisors, whose sum is σ = 2926192711680. Its totient is φ = 134536495104.

The previous prime is 652495011787. The next prime is 652495011853. The reversal of 652495011840 is 48110594256.

652495011840 is a `hidden beast` number, since 6 + 5 + 2 + 495 + 0 + 118 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a super-3 number, since 3×652495011840³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9738731487 + ... + 9738731553.

It is an arithmetic number, because the mean of its divisors is an integer number (1524058704).

Almost surely, 2^652495011840 is an apocalyptic number.

652495011840 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 652495011840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1463096355840).

652495011840 is an abundant number, since it is smaller than the sum of its proper divisors (2273697699840).

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

652495011840 is a wasteful number, since it uses less digits than its factorization.

652495011840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 652495011840 in words is "six hundred fifty-two billion, four hundred ninety-five million, eleven thousand, eight hundred forty".