12155803260 has 48 divisors (see below), whose sum is σ = 34078353792. Its totient is φ = 3237537600.

The previous prime is 12155803249. The next prime is 12155803271. The reversal of 12155803260 is 6230855121.

It is an interprime number because it is at equal distance from previous prime (12155803249) and next prime (12155803271).

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, 76246 + ... + 173565.

It is an arithmetic number, because the mean of its divisors is an integer number (709965704).

Almost surely, 2^12155803260 is an apocalyptic number.

12155803260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12155803260 is an abundant number, since it is smaller than the sum of its proper divisors (21922550532).

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

12155803260 is a wasteful number, since it uses less digits than its factorization.

12155803260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250634 (or 250632 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

It can be divided in two parts, 1215 and 5803260, that multiplied together give a square (7050960900 = 83970²).

The spelling of 12155803260 in words is "twelve billion, one hundred fifty-five million, eight hundred three thousand, two hundred sixty".