111654664450 has 48 divisors (see below), whose sum is σ = 237374789184. Its totient is φ = 38276942400.

The previous prime is 111654664411. The next prime is 111654664469. The reversal of 111654664450 is 54466456111.

It is a junction number, because it is equal to n+sod(n) for n = 111654664397 and 111654664406.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4123857 + ... + 4150843.

It is an arithmetic number, because the mean of its divisors is an integer number (4945308108).

Almost surely, 2^111654664450 is an apocalyptic number.

111654664450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111654664450 is an abundant number, since it is smaller than the sum of its proper divisors (125720124734).

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

111654664450 is a wasteful number, since it uses less digits than its factorization.

111654664450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38827 (or 38822 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 111654664450 in words is "one hundred eleven billion, six hundred fifty-four million, six hundred sixty-four thousand, four hundred fifty".