213506232011366 has 32 divisors (see below), whose sum is σ = 372824792262720. Its totient is φ = 89814152710656.

The previous prime is 213506232011363. The next prime is 213506232011411. The reversal of 213506232011366 is 663110232605312.

213506232011366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×213506232011366² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213506232011363) 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, 625206365 + ... + 625547768.

It is an arithmetic number, because the mean of its divisors is an integer number (11650774758210).

Almost surely, 2^{213506232011366} is an apocalyptic number.

213506232011366 is a deficient number, since it is larger than the sum of its proper divisors (159318560251354).

213506232011366 is a wasteful number, since it uses less digits than its factorization.

213506232011366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250754368.

The product of its (nonzero) digits is 233280, while the sum is 41.

Adding to 213506232011366 its reverse (663110232605312), we get a palindrome (876616464616678).

The spelling of 213506232011366 in words is "two hundred thirteen trillion, five hundred six billion, two hundred thirty-two million, eleven thousand, three hundred sixty-six".