66654326101 has 32 divisors (see below), whose sum is σ = 76807640448. Its totient is φ = 57290768640.

The previous prime is 66654326099. The next prime is 66654326147. The reversal of 66654326101 is 10162345666.

66654326101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 66654326101 - 2¹ = 66654326099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66654326171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3438031 + ... + 3457363.

It is an arithmetic number, because the mean of its divisors is an integer number (2400238764).

Almost surely, 2^66654326101 is an apocalyptic number.

It is an amenable number.

66654326101 is a deficient number, since it is larger than the sum of its proper divisors (10153314347).

66654326101 is a wasteful number, since it uses less digits than its factorization.

66654326101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19621.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 66654326101 in words is "sixty-six billion, six hundred fifty-four million, three hundred twenty-six thousand, one hundred one".