213455436664434 has 8 divisors (see below), whose sum is σ = 426910873328880. Its totient is φ = 71151812221476.

The previous prime is 213455436664369. The next prime is 213455436664441. The reversal of 213455436664434 is 434466634554312.

It is a sphenic number, since it is the product of 3 distinct primes.

213455436664434 is an admirable number.

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, 17787953055364 + ... + 17787953055375.

It is an arithmetic number, because the mean of its divisors is an integer number (53363859166110).

Almost surely, 2^{213455436664434} is an apocalyptic number.

213455436664434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213455436664434 is a wasteful number, since it uses less digits than its factorization.

213455436664434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35575906110744.

The product of its digits is 298598400, while the sum is 60.

The spelling of 213455436664434 in words is "two hundred thirteen trillion, four hundred fifty-five billion, four hundred thirty-six million, six hundred sixty-four thousand, four hundred thirty-four".