1612153216 has 16 divisors (see below), whose sum is σ = 3211711740. Its totient is φ = 806076544.

The previous prime is 1612153189. The next prime is 1612153223. The reversal of 1612153216 is 6123512161.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6297346 + ... + 6297601.

Almost surely, 2^1612153216 is an apocalyptic number.

1612153216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1612153216 is a deficient number, since it is larger than the sum of its proper divisors (1599558524).

1612153216 is an equidigital number, since it uses as much as digits as its factorization.

1612153216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12594961 (or 12594949 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 1612153216 is about 40151.6278125807. The cubic root of 1612153216 is about 1172.5609804573.

Adding to 1612153216 its reverse (6123512161), we get a palindrome (7735665377).

The spelling of 1612153216 in words is "one billion, six hundred twelve million, one hundred fifty-three thousand, two hundred sixteen".