1213960815360 has 864 divisors, whose sum is σ = 4488559246080. Its totient is φ = 314007404544.

The previous prime is 1213960815337. The next prime is 1213960815373. The reversal of 1213960815360 is 635180693121.

1213960815360 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 9 + 608 + 1 + 5 + 36 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a super-2 number, since 2×1213960815360² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1523162482 + ... + 1523163278.

It is an arithmetic number, because the mean of its divisors is an integer number (5195091720).

Almost surely, 2^{1213960815360} is an apocalyptic number.

1213960815360 is a gapful number since it is divisible by the number (10) 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 1213960815360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2244279623040).

1213960815360 is an abundant number, since it is smaller than the sum of its proper divisors (3274598430720).

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

1213960815360 is an frugal number, since it uses more digits than its factorization.

1213960815360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975 (or 949 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 1213960815360 in words is "one trillion, two hundred thirteen billion, nine hundred sixty million, eight hundred fifteen thousand, three hundred sixty".