1668967470 has 32 divisors (see below), whose sum is σ = 4450580640. Its totient is φ = 445057920.

The previous prime is 1668967459. The next prime is 1668967477. The reversal of 1668967470 is 747698661.

It is a happy number.

1668967470 is a `hidden beast` number, since 166 + 8 + 9 + 6 + 7 + 470 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668967477) 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 15 ways as a sum of consecutive naturals, for example, 3090411 + ... + 3090950.

It is an arithmetic number, because the mean of its divisors is an integer number (139080645).

Almost surely, 2^1668967470 is an apocalyptic number.

1668967470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1668967470 is an abundant number, since it is smaller than the sum of its proper divisors (2781613170).

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

1668967470 is a wasteful number, since it uses less digits than its factorization.

1668967470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6181377 (or 6181371 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The square root of 1668967470 is about 40852.9982987785. The cubic root of 1668967470 is about 1186.1764314323.

The spelling of 1668967470 in words is "one billion, six hundred sixty-eight million, nine hundred sixty-seven thousand, four hundred seventy".