652940447040 has 448 divisors, whose sum is σ = 2634200593920. Its totient is φ = 149146583040.

The previous prime is 652940446993. The next prime is 652940447051. The reversal of 652940447040 is 40744049256.

652940447040 is a `hidden beast` number, since 6 + 52 + 94 + 0 + 4 + 470 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

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 polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 137952514 + ... + 137957246.

It is an arithmetic number, because the mean of its divisors is an integer number (5879912040).

Almost surely, 2^652940447040 is an apocalyptic number.

652940447040 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 652940447040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1317100296960).

652940447040 is an abundant number, since it is smaller than the sum of its proper divisors (1981260146880).

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

652940447040 is a wasteful number, since it uses less digits than its factorization.

652940447040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7047 (or 7031 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 652940447040 in words is "six hundred fifty-two billion, nine hundred forty million, four hundred forty-seven thousand, forty".