1614051666 has 96 divisors (see below), whose sum is σ = 3743354160. Its totient is φ = 501645312.

The previous prime is 1614051661. The next prime is 1614051667. The reversal of 1614051666 is 6661504161.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 618964641 + 995087025 = 24879^2 + 31545^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1614051666.

It is not an unprimeable number, because it can be changed into a prime (1614051661) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 3727386 + ... + 3727818.

Almost surely, 2^1614051666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1614051666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1871677080).

1614051666 is an abundant number, since it is smaller than the sum of its proper divisors (2129302494).

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

1614051666 is a wasteful number, since it uses less digits than its factorization.

1614051666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700 (or 697 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1614051666 is about 40175.2618659792. The cubic root of 1614051666 is about 1173.0210639354.

The spelling of 1614051666 in words is "one billion, six hundred fourteen million, fifty-one thousand, six hundred sixty-six".