66122704751 has 2 divisors, whose sum is σ = 66122704752. Its totient is φ = 66122704750.

The previous prime is 66122704729. The next prime is 66122704789. The reversal of 66122704751 is 15740722166.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66122704751 - 2³⁴ = 48942835567 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66122704699 and 66122704708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66122704651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33061352375 + 33061352376.

It is an arithmetic number, because the mean of its divisors is an integer number (33061352376).

Almost surely, 2^66122704751 is an apocalyptic number.

66122704751 is a deficient number, since it is larger than the sum of its proper divisors (1).

66122704751 is an equidigital number, since it uses as much as digits as its factorization.

66122704751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 66122704751 in words is "sixty-six billion, one hundred twenty-two million, seven hundred four thousand, seven hundred fifty-one".