213253546640063 has 4 divisors (see below), whose sum is σ = 214370057355648. Its totient is φ = 212137035924480.

The previous prime is 213253546640047. The next prime is 213253546640093. The reversal of 213253546640063 is 360046645352312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 213253546640063 - 2⁴ = 213253546640047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213253546639993 and 213253546640020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213253546640093) 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, 558255357506 + ... + 558255357887.

It is an arithmetic number, because the mean of its divisors is an integer number (53592514338912).

Almost surely, 2^{213253546640063} is an apocalyptic number.

213253546640063 is a deficient number, since it is larger than the sum of its proper divisors (1116510715585).

213253546640063 is a wasteful number, since it uses less digits than its factorization.

213253546640063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116510715584.

The product of its (nonzero) digits is 9331200, while the sum is 50.

The spelling of 213253546640063 in words is "two hundred thirteen trillion, two hundred fifty-three billion, five hundred forty-six million, six hundred forty thousand, sixty-three".