8240618641552 has 160 divisors (see below), whose sum is σ = 19748690288640. Its totient is φ = 3284810496000.

The previous prime is 8240618641523. The next prime is 8240618641553. The reversal of 8240618641552 is 2551468160428.

It is a self number, because there is not a number n which added to its sum of digits gives 8240618641552.

It is not an unprimeable number, because it can be changed into a prime (8240618641553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 656152 + ... + 4112392.

It is an arithmetic number, because the mean of its divisors is an integer number (123429314304).

Almost surely, 2^{8240618641552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8240618641552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9874345144320).

8240618641552 is an abundant number, since it is smaller than the sum of its proper divisors (11508071647088).

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

8240618641552 is a wasteful number, since it uses less digits than its factorization.

8240618641552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3456333 (or 3456327 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 52.

The spelling of 8240618641552 in words is "eight trillion, two hundred forty billion, six hundred eighteen million, six hundred forty-one thousand, five hundred fifty-two".