66053437951 has 2 divisors, whose sum is σ = 66053437952. Its totient is φ = 66053437950.

The previous prime is 66053437939. The next prime is 66053437993. The reversal of 66053437951 is 15973435066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66053437951 - 2¹³ = 66053429759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66053437895 and 66053437904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66057437951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33026718975 + 33026718976.

It is an arithmetic number, because the mean of its divisors is an integer number (33026718976).

Almost surely, 2^66053437951 is an apocalyptic number.

66053437951 is a deficient number, since it is larger than the sum of its proper divisors (1).

66053437951 is an equidigital number, since it uses as much as digits as its factorization.

66053437951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2041200, while the sum is 49.

The spelling of 66053437951 in words is "sixty-six billion, fifty-three million, four hundred thirty-seven thousand, nine hundred fifty-one".