1374351666 has 16 divisors (see below), whose sum is σ = 2758924800. Its totient is φ = 456413648.

The previous prime is 1374351659. The next prime is 1374351691. The reversal of 1374351666 is 6661534731.

1374351666 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 424146 + ... + 427373.

It is an arithmetic number, because the mean of its divisors is an integer number (172432800).

Almost surely, 2^1374351666 is an apocalyptic number.

1374351666 is an abundant number, since it is smaller than the sum of its proper divisors (1384573134).

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

1374351666 is a wasteful number, since it uses less digits than its factorization.

1374351666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851793.

The product of its digits is 272160, while the sum is 42.

The square root of 1374351666 is about 37072.2492708495. The cubic root of 1374351666 is about 1111.8152442434.

The spelling of 1374351666 in words is "one billion, three hundred seventy-four million, three hundred fifty-one thousand, six hundred sixty-six".