1036666401 has 8 divisors (see below), whose sum is σ = 1384971840. Its totient is φ = 689735952.

The previous prime is 1036666399. The next prime is 1036666439. The reversal of 1036666401 is 1046666301.

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

It is not a de Polignac number, because 1036666401 - 2¹ = 1036666399 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1036666441) 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, 341986 + ... + 345003.

It is an arithmetic number, because the mean of its divisors is an integer number (173121480).

Almost surely, 2^1036666401 is an apocalyptic number.

It is an amenable number.

1036666401 is a deficient number, since it is larger than the sum of its proper divisors (348305439).

1036666401 is an equidigital number, since it uses as much as digits as its factorization.

1036666401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687495.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 1036666401 is about 32197.3042505114. The cubic root of 1036666401 is about 1012.0757235932.

It can be divided in two parts, 10366 and 66401, that added together give a palindrome (76767).

The spelling of 1036666401 in words is "one billion, thirty-six million, six hundred sixty-six thousand, four hundred one".