1666740230 has 16 divisors (see below), whose sum is σ = 3158034480. Its totient is φ = 631606752.

The previous prime is 1666740227. The next prime is 1666740247. The reversal of 1666740230 is 320476661.

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, 4385969 + ... + 4386348.

It is an arithmetic number, because the mean of its divisors is an integer number (197377155).

Almost surely, 2^1666740230 is an apocalyptic number.

1666740230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1666740230 is a deficient number, since it is larger than the sum of its proper divisors (1491294250).

1666740230 is a wasteful number, since it uses less digits than its factorization.

1666740230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8772343.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 1666740230 is about 40825.7299995971. The cubic root of 1666740230 is about 1185.6485450352.

The spelling of 1666740230 in words is "one billion, six hundred sixty-six million, seven hundred forty thousand, two hundred thirty".