111663706540 has 12 divisors (see below), whose sum is σ = 234493783776. Its totient is φ = 44665482608.

The previous prime is 111663706493. The next prime is 111663706547. The reversal of 111663706540 is 45607366111.

It is a junction number, because it is equal to n+sod(n) for n = 111663706493 and 111663706502.

It is not an unprimeable number, because it can be changed into a prime (111663706547) 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, 2791592644 + ... + 2791592683.

It is an arithmetic number, because the mean of its divisors is an integer number (19541148648).

Almost surely, 2^111663706540 is an apocalyptic number.

111663706540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111663706540 is an abundant number, since it is smaller than the sum of its proper divisors (122830077236).

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

111663706540 is a wasteful number, since it uses less digits than its factorization.

111663706540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5583185336 (or 5583185334 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 111663706540 in words is "one hundred eleven billion, six hundred sixty-three million, seven hundred six thousand, five hundred forty".