1601662118 has 12 divisors (see below), whose sum is σ = 2794737132. Its totient is φ = 686426580.

The previous prime is 1601662103. The next prime is 1601662147. The reversal of 1601662118 is 8112661061.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8171648 + ... + 8171843.

It is an arithmetic number, because the mean of its divisors is an integer number (232894761).

Almost surely, 2^1601662118 is an apocalyptic number.

1601662118 is a deficient number, since it is larger than the sum of its proper divisors (1193075014).

1601662118 is a wasteful number, since it uses less digits than its factorization.

1601662118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16343507 (or 16343500 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 1601662118 is about 40020.7710820269. The cubic root of 1601662118 is about 1170.0119603326.

The spelling of 1601662118 in words is "one billion, six hundred one million, six hundred sixty-two thousand, one hundred eighteen".