1616683406 has 24 divisors (see below), whose sum is σ = 2628335304. Its totient is φ = 745474080.

The previous prime is 1616683351. The next prime is 1616683421. The reversal of 1616683406 is 6043866161.

It is a super-2 number, since 2×1616683406² = 5227330470471521672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 651440 + ... + 653916.

It is an arithmetic number, because the mean of its divisors is an integer number (109513971).

Almost surely, 2^1616683406 is an apocalyptic number.

1616683406 is a deficient number, since it is larger than the sum of its proper divisors (1011651898).

1616683406 is a wasteful number, since it uses less digits than its factorization.

1616683406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4436 (or 4423 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 1616683406 is about 40208.0017658177. The cubic root of 1616683406 is about 1173.6582616551.

The spelling of 1616683406 in words is "one billion, six hundred sixteen million, six hundred eighty-three thousand, four hundred six".