1668453470 has 16 divisors (see below), whose sum is σ = 3067115328. Its totient is φ = 653181600.

The previous prime is 1668453463. The next prime is 1668453539. The reversal of 1668453470 is 743548661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1774481 + ... + 1775420.

It is an arithmetic number, because the mean of its divisors is an integer number (191694708).

Almost surely, 2^1668453470 is an apocalyptic number.

1668453470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1668453470 is a deficient number, since it is larger than the sum of its proper divisors (1398661858).

1668453470 is a wasteful number, since it uses less digits than its factorization.

1668453470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3549955.

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 1668453470 is about 40846.7069664128. The cubic root of 1668453470 is about 1186.0546480947.

The spelling of 1668453470 in words is "one billion, six hundred sixty-eight million, four hundred fifty-three thousand, four hundred seventy".