111668635 has 16 divisors (see below), whose sum is σ = 147669984. Its totient is φ = 80543232.

The previous prime is 111668539. The next prime is 111668653. The reversal of 111668635 is 536866111.

It is a cyclic number.

It is not a de Polignac number, because 111668635 - 2¹³ = 111660443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111668594 and 111668603.

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, 17182 + ... + 22771.

It is an arithmetic number, because the mean of its divisors is an integer number (9229374).

Almost surely, 2^111668635 is an apocalyptic number.

111668635 is a deficient number, since it is larger than the sum of its proper divisors (36001349).

111668635 is a wasteful number, since it uses less digits than its factorization.

111668635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40014.

The product of its digits is 25920, while the sum is 37.

The square root of 111668635 is about 10567.3381227251. The cubic root of 111668635 is about 481.5526041991.

It can be divided in two parts, 1116 and 68635, that added together give a triangular number (69751 = T₃₇₃).

The spelling of 111668635 in words is "one hundred eleven million, six hundred sixty-eight thousand, six hundred thirty-five".