66544333151 has 2 divisors, whose sum is σ = 66544333152. Its totient is φ = 66544333150.

The previous prime is 66544333139. The next prime is 66544333157. The reversal of 66544333151 is 15133344566.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66544333151 - 2¹⁸ = 66544071007 is a prime.

It is a super-2 number, since 2×66544333151² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66544333099 and 66544333108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66544333157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33272166575 + 33272166576.

It is an arithmetic number, because the mean of its divisors is an integer number (33272166576).

Almost surely, 2^66544333151 is an apocalyptic number.

66544333151 is a deficient number, since it is larger than the sum of its proper divisors (1).

66544333151 is an equidigital number, since it uses as much as digits as its factorization.

66544333151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 41.

The spelling of 66544333151 in words is "sixty-six billion, five hundred forty-four million, three hundred thirty-three thousand, one hundred fifty-one".