66407733151 has 2 divisors, whose sum is σ = 66407733152. Its totient is φ = 66407733150.

The previous prime is 66407733149. The next prime is 66407733179. The reversal of 66407733151 is 15133770466.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66407733151 - 2¹ = 66407733149 is a prime.

Together with 66407733149, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 66407733098 and 66407733107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66407733451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33203866575 + 33203866576.

It is an arithmetic number, because the mean of its divisors is an integer number (33203866576).

Almost surely, 2^66407733151 is an apocalyptic number.

66407733151 is a deficient number, since it is larger than the sum of its proper divisors (1).

66407733151 is an equidigital number, since it uses as much as digits as its factorization.

66407733151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 43.

The spelling of 66407733151 in words is "sixty-six billion, four hundred seven million, seven hundred thirty-three thousand, one hundred fifty-one".