18016677 has 12 divisors (see below), whose sum is σ = 29741920. Its totient is φ = 10295208.

The previous prime is 18016667. The next prime is 18016681. The reversal of 18016677 is 77661081.

It is a happy number.

It is not a de Polignac number, because 18016677 - 2⁸ = 18016421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18016637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142927 + ... + 143052.

Almost surely, 2^18016677 is an apocalyptic number.

It is an amenable number.

18016677 is a deficient number, since it is larger than the sum of its proper divisors (11725243).

18016677 is a wasteful number, since it uses less digits than its factorization.

18016677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285992 (or 285989 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 18016677 is about 4244.6056353918. The cubic root of 18016677 is about 262.1550516677.

The spelling of 18016677 in words is "eighteen million, sixteen thousand, six hundred seventy-seven".