66512650101 has 8 divisors (see below), whose sum is σ = 88917528480. Its totient is φ = 44224769232.

The previous prime is 66512650079. The next prime is 66512650103. The reversal of 66512650101 is 10105621566.

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

It is not a de Polignac number, because 66512650101 - 2¹⁸ = 66512387957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66512650103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29248050 + ... + 29250323.

It is an arithmetic number, because the mean of its divisors is an integer number (11114691060).

Almost surely, 2^66512650101 is an apocalyptic number.

It is an amenable number.

66512650101 is a deficient number, since it is larger than the sum of its proper divisors (22404878379).

66512650101 is a wasteful number, since it uses less digits than its factorization.

66512650101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58498755.

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 66512650101 in words is "sixty-six billion, five hundred twelve million, six hundred fifty thousand, one hundred one".