11781225580 has 12 divisors (see below), whose sum is σ = 24740573760. Its totient is φ = 4712490224.

The previous prime is 11781225479. The next prime is 11781225581. The reversal of 11781225580 is 8552218711.

It is not an unprimeable number, because it can be changed into a prime (11781225581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294530620 + ... + 294530659.

It is an arithmetic number, because the mean of its divisors is an integer number (2061714480).

Almost surely, 2^11781225580 is an apocalyptic number.

11781225580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11781225580 is an abundant number, since it is smaller than the sum of its proper divisors (12959348180).

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

11781225580 is a wasteful number, since it uses less digits than its factorization.

11781225580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589061288 (or 589061286 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 40.

The spelling of 11781225580 in words is "eleven billion, seven hundred eighty-one million, two hundred twenty-five thousand, five hundred eighty".