66360631085 has 16 divisors (see below), whose sum is σ = 91301513472. Its totient is φ = 45358108800.

The previous prime is 66360631063. The next prime is 66360631091. The reversal of 66360631085 is 58013606366.

It is not a de Polignac number, because 66360631085 - 2¹² = 66360626989 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 3037376 + ... + 3059145.

It is an arithmetic number, because the mean of its divisors is an integer number (5706344592).

Almost surely, 2^66360631085 is an apocalyptic number.

It is an amenable number.

66360631085 is a deficient number, since it is larger than the sum of its proper divisors (24940882387).

66360631085 is a wasteful number, since it uses less digits than its factorization.

66360631085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6096844.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 66360631085 in words is "sixty-six billion, three hundred sixty million, six hundred thirty-one thousand, eighty-five".