2066215122151 has 4 divisors (see below), whose sum is σ = 2066219278704. Its totient is φ = 2066210965600.

The previous prime is 2066215122143. The next prime is 2066215122157. The reversal of 2066215122151 is 1512215126602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2066215122151 - 2³ = 2066215122143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066215122157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1212370 + ... + 2366911.

It is an arithmetic number, because the mean of its divisors is an integer number (516554819676).

Almost surely, 2^{2066215122151} is an apocalyptic number.

2066215122151 is a deficient number, since it is larger than the sum of its proper divisors (4156553).

2066215122151 is an equidigital number, since it uses as much as digits as its factorization.

2066215122151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4156552.

The product of its (nonzero) digits is 14400, while the sum is 34.

The spelling of 2066215122151 in words is "two trillion, sixty-six billion, two hundred fifteen million, one hundred twenty-two thousand, one hundred fifty-one".