1215266192320 has 112 divisors (see below), whose sum is σ = 2906349076800. Its totient is φ = 484010024960.

The previous prime is 1215266192297. The next prime is 1215266192377. The reversal of 1215266192320 is 232916625121.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140180946 + ... + 140189614.

Almost surely, 2^{1215266192320} is an apocalyptic number.

1215266192320 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 1215266192320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1453174538400).

1215266192320 is an abundant number, since it is smaller than the sum of its proper divisors (1691082884480).

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

1215266192320 is a wasteful number, since it uses less digits than its factorization.

1215266192320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10526 (or 10516 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 1215266192320 in words is "one trillion, two hundred fifteen billion, two hundred sixty-six million, one hundred ninety-two thousand, three hundred twenty".