1616325826 has 16 divisors (see below), whose sum is σ = 2453991480. Its totient is φ = 798364800.

The previous prime is 1616325811. The next prime is 1616325829. The reversal of 1616325826 is 6285236161.

It can be written as a sum of positive squares in 4 ways, for example, as 1517024601 + 99301225 = 38949^2 + 9965^2 .

It is a super-2 number, since 2×1616325826² = 5225018351589164552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1616325829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83560 + ... + 101068.

Almost surely, 2^1616325826 is an apocalyptic number.

1616325826 is a deficient number, since it is larger than the sum of its proper divisors (837665654).

1616325826 is a wasteful number, since it uses less digits than its factorization.

1616325826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18069.

The product of its digits is 103680, while the sum is 40.

The square root of 1616325826 is about 40203.5548925714. The cubic root of 1616325826 is about 1173.5717248879.

The spelling of 1616325826 in words is "one billion, six hundred sixteen million, three hundred twenty-five thousand, eight hundred twenty-six".