1301709666 has 16 divisors (see below), whose sum is σ = 2603886624. Its totient is φ = 433825344.

The previous prime is 1301709653. The next prime is 1301709707. The reversal of 1301709666 is 6669071031.

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, 24321 + ... + 56523.

It is an arithmetic number, because the mean of its divisors is an integer number (162742914).

Almost surely, 2^1301709666 is an apocalyptic number.

1301709666 is an abundant number, since it is smaller than the sum of its proper divisors (1302176958).

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

1301709666 is a wasteful number, since it uses less digits than its factorization.

1301709666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38945.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 1301709666 is about 36079.2137663780. The cubic root of 1301709666 is about 1091.8711138121.

The spelling of 1301709666 in words is "one billion, three hundred one million, seven hundred nine thousand, six hundred sixty-six".