1366006631 has 16 divisors (see below), whose sum is σ = 1507849728. Its totient is φ = 1237408920.

The previous prime is 1366006583. The next prime is 1366006643.

1366006631 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1366006631 - 2¹⁴ = 1365990247 is a prime.

It is a super-2 number, since 2×1366006631² = 3731948231871940322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366006531) 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, 406946 + ... + 410288.

It is an arithmetic number, because the mean of its divisors is an integer number (94240608).

Almost surely, 2^1366006631 is an apocalyptic number.

1366006631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1366006631 is a deficient number, since it is larger than the sum of its proper divisors (141843097).

1366006631 is an equidigital number, since it uses as much as digits as its factorization.

1366006631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3683 (or 3661 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 1366006631 is about 36959.5269314963. The cubic root of 1366006631 is about 1109.5603677933.

The spelling of 1366006631 in words is "one billion, three hundred sixty-six million, six thousand, six hundred thirty-one".