18039699416 has 32 divisors (see below), whose sum is σ = 35635172400. Its totient is φ = 8537800320.

The previous prime is 18039699407. The next prime is 18039699427. The reversal of 18039699416 is 61499693081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129266 + ... + 229758.

Almost surely, 2^18039699416 is an apocalyptic number.

It is an amenable number.

18039699416 is a deficient number, since it is larger than the sum of its proper divisors (17595472984).

18039699416 is a wasteful number, since it uses less digits than its factorization.

18039699416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101699 (or 101695 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 56.

The spelling of 18039699416 in words is "eighteen billion, thirty-nine million, six hundred ninety-nine thousand, four hundred sixteen".