66130422621201 has 24 divisors (see below), whose sum is σ = 95942977827840. Its totient is φ = 43892605463616.

The previous prime is 66130422621169. The next prime is 66130422621203. The reversal of 66130422621201 is 10212622403166.

66130422621201 is a `hidden beast` number, since 6 + 6 + 1 + 3 + 0 + 4 + 2 + 2 + 621 + 20 + 1 = 666.

It is not a de Polignac number, because 66130422621201 - 2⁵ = 66130422621169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66130422621203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6108781 + ... + 13022213.

It is an arithmetic number, because the mean of its divisors is an integer number (3997624076160).

Almost surely, 2^{66130422621201} is an apocalyptic number.

It is an amenable number.

66130422621201 is a deficient number, since it is larger than the sum of its proper divisors (29812555206639).

66130422621201 is a wasteful number, since it uses less digits than its factorization.

66130422621201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6918125 (or 6918122 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 66130422621201 in words is "sixty-six trillion, one hundred thirty billion, four hundred twenty-two million, six hundred twenty-one thousand, two hundred one".