213355434534544 has 20 divisors (see below), whose sum is σ = 413487068439424. Its totient is φ = 106649094292128.

The previous prime is 213355434534503. The next prime is 213355434534563. The reversal of 213355434534544 is 445435434553312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1788874452 + ... + 1788993715.

Almost surely, 2^{213355434534544} is an apocalyptic number.

It is an amenable number.

213355434534544 is a deficient number, since it is larger than the sum of its proper divisors (200131633904880).

213355434534544 is a wasteful number, since it uses less digits than its factorization.

213355434534544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3577871902 (or 3577871896 counting only the distinct ones).

The product of its digits is 103680000, while the sum is 55.

The spelling of 213355434534544 in words is "two hundred thirteen trillion, three hundred fifty-five billion, four hundred thirty-four million, five hundred thirty-four thousand, five hundred forty-four".