1662011716 has 12 divisors (see below), whose sum is σ = 2909303488. Its totient is φ = 830782152.

The previous prime is 1662011713. The next prime is 1662011731. The reversal of 1662011716 is 6171102661.

It is not an unprimeable number, because it can be changed into a prime (1662011713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38616 + ... + 69391.

Almost surely, 2^1662011716 is an apocalyptic number.

It is an amenable number.

1662011716 is a deficient number, since it is larger than the sum of its proper divisors (1247291772).

1662011716 is a wasteful number, since it uses less digits than its factorization.

1662011716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111858 (or 111856 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1662011716 is about 40767.7779134453. Note that the first 3 decimals coincide. The cubic root of 1662011716 is about 1184.5262614049.

The spelling of 1662011716 in words is "one billion, six hundred sixty-two million, eleven thousand, seven hundred sixteen".