11880692550 has 96 divisors (see below), whose sum is σ = 34161384960. Its totient is φ = 3030429600.

The previous prime is 11880692543. The next prime is 11880692591. The reversal of 11880692550 is 5529608811.

It is a happy number.

11880692550 is a `hidden beast` number, since 1 + 1 + 8 + 8 + 0 + 6 + 92 + 550 = 666.

11880692550 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 11880692496 and 11880692505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 160266 + ... + 222365.

It is an arithmetic number, because the mean of its divisors is an integer number (355847760).

Almost surely, 2^11880692550 is an apocalyptic number.

11880692550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11880692550 is an abundant number, since it is smaller than the sum of its proper divisors (22280692410).

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

11880692550 is a wasteful number, since it uses less digits than its factorization.

11880692550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382675 (or 382664 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 45.

The spelling of 11880692550 in words is "eleven billion, eight hundred eighty million, six hundred ninety-two thousand, five hundred fifty".