1215446414660 has 192 divisors, whose sum is σ = 2735788898304. Its totient is φ = 452838297600.

The previous prime is 1215446414659. The next prime is 1215446414669. The reversal of 1215446414660 is 664146445121.

It is not an unprimeable number, because it can be changed into a prime (1215446414669) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1176617504 + ... + 1176618536.

It is an arithmetic number, because the mean of its divisors is an integer number (14248900512).

Almost surely, 2^{1215446414660} is an apocalyptic number.

1215446414660 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 1215446414660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1367894449152).

1215446414660 is an abundant number, since it is smaller than the sum of its proper divisors (1520342483644).

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

1215446414660 is a wasteful number, since it uses less digits than its factorization.

1215446414660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774 (or 1772 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 1215446414660 in words is "one trillion, two hundred fifteen billion, four hundred forty-six million, four hundred fourteen thousand, six hundred sixty".