1606666470 has 16 divisors (see below), whose sum is σ = 3855999600. Its totient is φ = 428444384.

The previous prime is 1606666469. The next prime is 1606666487. The reversal of 1606666470 is 746666061.

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, 26777745 + ... + 26777804.

It is an arithmetic number, because the mean of its divisors is an integer number (240999975).

Almost surely, 2^1606666470 is an apocalyptic number.

1606666470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1606666470 is an abundant number, since it is smaller than the sum of its proper divisors (2249333130).

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

1606666470 is a wasteful number, since it uses less digits than its factorization.

1606666470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53555559.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 1606666470 is about 40083.2442549253. The cubic root of 1606666470 is about 1171.2292508171.

The spelling of 1606666470 in words is "one billion, six hundred six million, six hundred sixty-six thousand, four hundred seventy".