213660224854 has 4 divisors (see below), whose sum is σ = 320490337284. Its totient is φ = 106830112426.

The previous prime is 213660224851. The next prime is 213660224861. The reversal of 213660224854 is 458422066312.

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

It is a self number, because there is not a number n which added to its sum of digits gives 213660224854.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213660224851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53415056212 + ... + 53415056215.

It is an arithmetic number, because the mean of its divisors is an integer number (80122584321).

Almost surely, 2^213660224854 is an apocalyptic number.

213660224854 is a deficient number, since it is larger than the sum of its proper divisors (106830112430).

213660224854 is a wasteful number, since it uses less digits than its factorization.

213660224854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106830112429.

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 213660224854 in words is "two hundred thirteen billion, six hundred sixty million, two hundred twenty-four thousand, eight hundred fifty-four".