1373170666 has 16 divisors (see below), whose sum is σ = 2360162304. Its totient is φ = 586962864.

The previous prime is 1373170663. The next prime is 1373170691. The reversal of 1373170666 is 6660713731.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1373170663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122685 + ... + 133408.

It is an arithmetic number, because the mean of its divisors is an integer number (147510144).

Almost surely, 2^1373170666 is an apocalyptic number.

1373170666 is a deficient number, since it is larger than the sum of its proper divisors (986991638).

1373170666 is a wasteful number, since it uses less digits than its factorization.

1373170666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256485.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 1373170666 is about 37056.3174910838. The cubic root of 1373170666 is about 1111.4966867436.

The spelling of 1373170666 in words is "one billion, three hundred seventy-three million, one hundred seventy thousand, six hundred sixty-six".