666516622151 has 8 divisors (see below), whose sum is σ = 682612426944. Its totient is φ = 650609072640.

The previous prime is 666516622127. The next prime is 666516622223. The reversal of 666516622151 is 151226615666.

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 666516622151 - 2¹⁸ = 666516360007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 666516622096 and 666516622105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666546622151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47056655 + ... + 47070816.

It is an arithmetic number, because the mean of its divisors is an integer number (85326553368).

Almost surely, 2^666516622151 is an apocalyptic number.

666516622151 is a deficient number, since it is larger than the sum of its proper divisors (16095804793).

666516622151 is an equidigital number, since it uses as much as digits as its factorization.

666516622151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94127641.

The product of its digits is 777600, while the sum is 47.

The spelling of 666516622151 in words is "six hundred sixty-six billion, five hundred sixteen million, six hundred twenty-two thousand, one hundred fifty-one".