1337746666 has 8 divisors (see below), whose sum is σ = 2015232804. Its totient is φ = 666002400.

The previous prime is 1337746651. The next prime is 1337746679. The reversal of 1337746666 is 6666477331.

It can be written as a sum of positive squares in 2 ways, for example, as 1191699441 + 146047225 = 34521^2 + 12085^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1337746666² = 3579132284788231112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1434885 + ... + 1435816.

Almost surely, 2^1337746666 is an apocalyptic number.

1337746666 is a deficient number, since it is larger than the sum of its proper divisors (677486138).

1337746666 is a wasteful number, since it uses less digits than its factorization.

1337746666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870936.

The product of its digits is 2286144, while the sum is 49.

The square root of 1337746666 is about 36575.2192884745. The cubic root of 1337746666 is about 1101.8554541787.

The spelling of 1337746666 in words is "one billion, three hundred thirty-seven million, seven hundred forty-six thousand, six hundred sixty-six".