1606311699 has 32 divisors (see below), whose sum is σ = 2296734720. Its totient is φ = 995662368.

The previous prime is 1606311683. The next prime is 1606311709. The reversal of 1606311699 is 9961136061.

It is not a de Polignac number, because 1606311699 - 2⁴ = 1606311683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1606311699.

It is not an unprimeable number, because it can be changed into a prime (1606311649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 770112 + ... + 772194.

It is an arithmetic number, because the mean of its divisors is an integer number (71772960).

Almost surely, 2^1606311699 is an apocalyptic number.

1606311699 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1606311699 is a deficient number, since it is larger than the sum of its proper divisors (690423021).

1606311699 is a wasteful number, since it uses less digits than its factorization.

1606311699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 1606311699 is about 40078.8185828874. The cubic root of 1606311699 is about 1171.1430373708.

The spelling of 1606311699 in words is "one billion, six hundred six million, three hundred eleven thousand, six hundred ninety-nine".