66531360590 has 8 divisors (see below), whose sum is σ = 119756449080. Its totient is φ = 26612544232.

The previous prime is 66531360589. The next prime is 66531360629. The reversal of 66531360590 is 9506313566.

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, 3326568020 + ... + 3326568039.

It is an arithmetic number, because the mean of its divisors is an integer number (14969556135).

Almost surely, 2^66531360590 is an apocalyptic number.

66531360590 is a deficient number, since it is larger than the sum of its proper divisors (53225088490).

66531360590 is a wasteful number, since it uses less digits than its factorization.

66531360590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6653136066.

The product of its (nonzero) digits is 437400, while the sum is 44.

The spelling of 66531360590 in words is "sixty-six billion, five hundred thirty-one million, three hundred sixty thousand, five hundred ninety".