1268470666 has 32 divisors (see below), whose sum is σ = 2049269760. Its totient is φ = 587076336.

The previous prime is 1268470663. The next prime is 1268470681. The reversal of 1268470666 is 6660748621.

It is not an unprimeable number, because it can be changed into a prime (1268470663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321381 + ... + 325303.

It is an arithmetic number, because the mean of its divisors is an integer number (64039680).

Almost surely, 2^1268470666 is an apocalyptic number.

1268470666 is a deficient number, since it is larger than the sum of its proper divisors (780799094).

1268470666 is a wasteful number, since it uses less digits than its factorization.

1268470666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4138.

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 1268470666 is about 35615.5958254246. The cubic root of 1268470666 is about 1082.4972692729.

The spelling of 1268470666 in words is "one billion, two hundred sixty-eight million, four hundred seventy thousand, six hundred sixty-six".