66087025205 has 16 divisors (see below), whose sum is σ = 80307417600. Its totient is φ = 52202620800.

The previous prime is 66087025157. The next prime is 66087025211. The reversal of 66087025205 is 50252078066.

It is not a de Polignac number, because 66087025205 - 2¹⁶ = 66086959669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216680 + ... + 423230.

It is an arithmetic number, because the mean of its divisors is an integer number (5019213600).

Almost surely, 2^66087025205 is an apocalyptic number.

It is an amenable number.

66087025205 is a deficient number, since it is larger than the sum of its proper divisors (14220392395).

66087025205 is a wasteful number, since it uses less digits than its factorization.

66087025205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207364.

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 66087025205 in words is "sixty-six billion, eighty-seven million, twenty-five thousand, two hundred five".