1666902834 has 16 divisors (see below), whose sum is σ = 3704228640. Its totient is φ = 555634260.

The previous prime is 1666902833. The next prime is 1666902899. The reversal of 1666902834 is 4382096661.

It is a self number, because there is not a number n which added to its sum of digits gives 1666902834.

It is not an unprimeable number, because it can be changed into a prime (1666902833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15434232 + ... + 15434339.

It is an arithmetic number, because the mean of its divisors is an integer number (231514290).

Almost surely, 2^1666902834 is an apocalyptic number.

1666902834 is an abundant number, since it is smaller than the sum of its proper divisors (2037325806).

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

1666902834 is a wasteful number, since it uses less digits than its factorization.

1666902834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30868582 (or 30868576 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 1666902834 is about 40827.7213912312. The cubic root of 1666902834 is about 1185.6871003189.

The spelling of 1666902834 in words is "one billion, six hundred sixty-six million, nine hundred two thousand, eight hundred thirty-four".