1215327242160 has 160 divisors (see below), whose sum is σ = 4187145338880. Its totient is φ = 324008439552.

The previous prime is 1215327242159. The next prime is 1215327242183. The reversal of 1215327242160 is 612427235121.

1215327242160 is a `hidden beast` number, since 1 + 2 + 1 + 532 + 72 + 42 + 16 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9098577 + ... + 9231183.

It is an arithmetic number, because the mean of its divisors is an integer number (26169658368).

Almost surely, 2^{1215327242160} is an apocalyptic number.

1215327242160 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 1215327242160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2093572669440).

1215327242160 is an abundant number, since it is smaller than the sum of its proper divisors (2971818096720).

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

1215327242160 is a wasteful number, since it uses less digits than its factorization.

1215327242160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136872 (or 136860 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 1215327242160 in words is "one trillion, two hundred fifteen billion, three hundred twenty-seven million, two hundred forty-two thousand, one hundred sixty".