2066226861601 has 8 divisors (see below), whose sum is σ = 2384328362624. Its totient is φ = 1753856919360.

The previous prime is 2066226861581. The next prime is 2066226861631. The reversal of 2066226861601 is 1061686226602.

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

It is not a de Polignac number, because 2066226861601 - 2²³ = 2066218472993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2066226861631) 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, 1432888920 + ... + 1432890361.

It is an arithmetic number, because the mean of its divisors is an integer number (298041045328).

Almost surely, 2^{2066226861601} is an apocalyptic number.

It is an amenable number.

2066226861601 is a deficient number, since it is larger than the sum of its proper divisors (318101501023).

2066226861601 is a wasteful number, since it uses less digits than its factorization.

2066226861601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2865779391.

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 2066226861601 in words is "two trillion, sixty-six billion, two hundred twenty-six million, eight hundred sixty-one thousand, six hundred one".