1215398596608 has 468 divisors, whose sum is σ = 4094262831360. Its totient is φ = 346376798208.

The previous prime is 1215398596507. The next prime is 1215398596619. The reversal of 1215398596608 is 8066958935121.

1215398596608 is a `hidden beast` number, since 1 + 2 + 1 + 5 + 39 + 8 + 596 + 6 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1118121441 + ... + 1118122527.

Almost surely, 2^{1215398596608} is an apocalyptic number.

1215398596608 is a gapful number since it is divisible by the number (18) 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 1215398596608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2047131415680).

1215398596608 is an abundant number, since it is smaller than the sum of its proper divisors (2878864234752).

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

1215398596608 is a wasteful number, since it uses less digits than its factorization.

1215398596608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750 (or 1718 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 63.

The spelling of 1215398596608 in words is "one trillion, two hundred fifteen billion, three hundred ninety-eight million, five hundred ninety-six thousand, six hundred eight".