1215165267260 has 48 divisors (see below), whose sum is σ = 2917188019200. Its totient is φ = 416515037760.

The previous prime is 1215165267257. The next prime is 1215165267299. The reversal of 1215165267260 is 627625615121.

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, 659060 + ... + 1692539.

It is an arithmetic number, because the mean of its divisors is an integer number (60774750400).

Almost surely, 2^{1215165267260} is an apocalyptic number.

1215165267260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1215165267260 is an abundant number, since it is smaller than the sum of its proper divisors (1702022751940).

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

1215165267260 is a wasteful number, since it uses less digits than its factorization.

1215165267260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2355306 (or 2355304 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 1215165267260 in words is "one trillion, two hundred fifteen billion, one hundred sixty-five million, two hundred sixty-seven thousand, two hundred sixty".