1366156794 has 32 divisors (see below), whose sum is σ = 2822561280. Its totient is φ = 440366400.

The previous prime is 1366156789. The next prime is 1366156807. The reversal of 1366156794 is 4976516631.

It is a super-4 number, since 4×1366156794⁴ (a number of 38 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427884 + ... + 431064.

It is an arithmetic number, because the mean of its divisors is an integer number (88205040).

Almost surely, 2^1366156794 is an apocalyptic number.

1366156794 is an abundant number, since it is smaller than the sum of its proper divisors (1456404486).

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

1366156794 is a wasteful number, since it uses less digits than its factorization.

1366156794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5526.

The product of its digits is 816480, while the sum is 48.

The square root of 1366156794 is about 36961.5583275381. The cubic root of 1366156794 is about 1109.6010237230.

The spelling of 1366156794 in words is "one billion, three hundred sixty-six million, one hundred fifty-six thousand, seven hundred ninety-four".