213445564060665 has 8 divisors (see below), whose sum is σ = 341512902497088. Its totient is φ = 113837634165680.

The previous prime is 213445564060643. The next prime is 213445564060759. The reversal of 213445564060665 is 566060465544312.

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

It is not a de Polignac number, because 213445564060665 - 2⁷ = 213445564060537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7114852135341 + ... + 7114852135370.

It is an arithmetic number, because the mean of its divisors is an integer number (42689112812136).

Almost surely, 2^{213445564060665} is an apocalyptic number.

It is an amenable number.

213445564060665 is a deficient number, since it is larger than the sum of its proper divisors (128067338436423).

213445564060665 is a wasteful number, since it uses less digits than its factorization.

213445564060665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14229704270719.

The product of its (nonzero) digits is 62208000, while the sum is 57.

The spelling of 213445564060665 in words is "two hundred thirteen trillion, four hundred forty-five billion, five hundred sixty-four million, sixty thousand, six hundred sixty-five".