1215536160 has 96 divisors (see below), whose sum is σ = 3961016640. Its totient is φ = 312962048.

The previous prime is 1215536149. The next prime is 1215536167. The reversal of 1215536160 is 616355121.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1215536167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29742 + ... + 57581.

It is an arithmetic number, because the mean of its divisors is an integer number (41260590).

Almost surely, 2^1215536160 is an apocalyptic number.

1215536160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1215536160 is an abundant number, since it is smaller than the sum of its proper divisors (2745480480).

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

1215536160 is a wasteful number, since it uses less digits than its factorization.

1215536160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87370 (or 87362 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1215536160 is about 34864.5401518506. The cubic root of 1215536160 is about 1067.2249282576.

The spelling of 1215536160 in words is "one billion, two hundred fifteen million, five hundred thirty-six thousand, one hundred sixty".