3216108690 has 24 divisors (see below), whose sum is σ = 8361882828. Its totient is φ = 857628960.

The previous prime is 3216108667. The next prime is 3216108691. The reversal of 3216108690 is 968016123.

3216108690 is a `hidden beast` number, since 32 + 1 + 610 + 8 + 6 + 9 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3144181329 + 71927361 = 56073^2 + 8481^2 .

It is a super-2 number, since 2×3216108690² = 20686710211787032200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3216108691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17867181 + ... + 17867360.

Almost surely, 2^3216108690 is an apocalyptic number.

3216108690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3216108690 is an abundant number, since it is smaller than the sum of its proper divisors (5145774138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3216108690 is a wasteful number, since it uses less digits than its factorization.

3216108690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35734554 (or 35734551 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 3216108690 is about 56710.7458071220. The cubic root of 3216108690 is about 1476.0811669071.

The spelling of 3216108690 in words is "three billion, two hundred sixteen million, one hundred eight thousand, six hundred ninety".