1616849806 has 32 divisors (see below), whose sum is σ = 2897596800. Its totient is φ = 666893280.

The previous prime is 1616849777. The next prime is 1616849833. The reversal of 1616849806 is 6089486161.

It is a super-2 number, since 2×1616849806² = 5228406590324475272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1616849806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31036 + ... + 64783.

It is an arithmetic number, because the mean of its divisors is an integer number (90549900).

Almost surely, 2^1616849806 is an apocalyptic number.

1616849806 is a deficient number, since it is larger than the sum of its proper divisors (1280746994).

1616849806 is a wasteful number, since it uses less digits than its factorization.

1616849806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95904.

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 1616849806 is about 40210.0709524368. The cubic root of 1616849806 is about 1173.6985272247.

The spelling of 1616849806 in words is "one billion, six hundred sixteen million, eight hundred forty-nine thousand, eight hundred six".