66001110501 has 8 divisors (see below), whose sum is σ = 88673248224. Its totient is φ = 43664856560.

The previous prime is 66001110481. The next prime is 66001110517. The reversal of 66001110501 is 10501110066.

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

It is a cyclic number.

It is not a de Polignac number, because 66001110501 - 2¹⁵ = 66001077733 is a prime.

It is a super-2 number, since 2×66001110501² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66001110541) 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, 83970486 + ... + 83971271.

It is an arithmetic number, because the mean of its divisors is an integer number (11084156028).

Almost surely, 2^66001110501 is an apocalyptic number.

It is an amenable number.

66001110501 is a deficient number, since it is larger than the sum of its proper divisors (22672137723).

66001110501 is a wasteful number, since it uses less digits than its factorization.

66001110501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167941891.

The product of its (nonzero) digits is 180, while the sum is 21.

Adding to 66001110501 its reverse (10501110066), we get a palindrome (76502220567).

The spelling of 66001110501 in words is "sixty-six billion, one million, one hundred ten thousand, five hundred one".