1606333556 has 12 divisors (see below), whose sum is σ = 2811403140. Its totient is φ = 803075520.

The previous prime is 1606333543. The next prime is 1606333559. The reversal of 1606333556 is 6553336061.

It can be written as a sum of positive squares in 2 ways, for example, as 223981156 + 1382352400 = 14966^2 + 37180^2 .

It is a super-4 number, since 4×1606333556⁴ (a number of 38 digits) contains 4444 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606333559) 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, 30776 + ... + 64496.

It is an arithmetic number, because the mean of its divisors is an integer number (234283595).

Almost surely, 2^1606333556 is an apocalyptic number.

It is an amenable number.

1606333556 is a deficient number, since it is larger than the sum of its proper divisors (1205069584).

1606333556 is a wasteful number, since it uses less digits than its factorization.

1606333556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45634 (or 45632 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 38.

The square root of 1606333556 is about 40079.0912571630. The cubic root of 1606333556 is about 1171.1483492409.

The spelling of 1606333556 in words is "one billion, six hundred six million, three hundred thirty-three thousand, five hundred fifty-six".