66588145238 has 8 divisors (see below), whose sum is σ = 101372997432. Its totient is φ = 32797146096.

The previous prime is 66588145219. The next prime is 66588145301. The reversal of 66588145238 is 83254188566.

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

It is a congruent 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, 248463095 + ... + 248463362.

It is an arithmetic number, because the mean of its divisors is an integer number (12671624679).

Almost surely, 2^66588145238 is an apocalyptic number.

66588145238 is a deficient number, since it is larger than the sum of its proper divisors (34784852194).

66588145238 is a wasteful number, since it uses less digits than its factorization.

66588145238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496926526.

The product of its digits is 11059200, while the sum is 56.

The spelling of 66588145238 in words is "sixty-six billion, five hundred eighty-eight million, one hundred forty-five thousand, two hundred thirty-eight".