213663744001 has 4 divisors (see below), whose sum is σ = 214748331732. Its totient is φ = 212579156272.

The previous prime is 213663743981. The next prime is 213663744011. The reversal of 213663744001 is 100447366312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 177177013776 + 36486730225 = 420924^2 + 191015^2 .

It is a cyclic number.

It is not a de Polignac number, because 213663744001 - 2²³ = 213655355393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213663744011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542293570 + ... + 542293963.

It is an arithmetic number, because the mean of its divisors is an integer number (53687082933).

Almost surely, 2^213663744001 is an apocalyptic number.

It is an amenable number.

213663744001 is a deficient number, since it is larger than the sum of its proper divisors (1084587731).

213663744001 is a wasteful number, since it uses less digits than its factorization.

213663744001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084587730.

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 213663744001 in words is "two hundred thirteen billion, six hundred sixty-three million, seven hundred forty-four thousand, one".