1616670812 has 12 divisors (see below), whose sum is σ = 2837191056. Its totient is φ = 806044800.

The previous prime is 1616670793. The next prime is 1616670821. The reversal of 1616670812 is 2180766161.

It is a super-2 number, since 2×1616670812² = 5227249028745478688, which contains 22 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 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 3 ways as a sum of consecutive naturals, for example, 571064 + ... + 573887.

It is an arithmetic number, because the mean of its divisors is an integer number (236432588).

Almost surely, 2^1616670812 is an apocalyptic number.

It is an amenable number.

1616670812 is a deficient number, since it is larger than the sum of its proper divisors (1220520244).

1616670812 is a wasteful number, since it uses less digits than its factorization.

1616670812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145308 (or 1145306 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 1616670812 is about 40207.8451548948. The cubic root of 1616670812 is about 1173.6552140391.

The spelling of 1616670812 in words is "one billion, six hundred sixteen million, six hundred seventy thousand, eight hundred twelve".