66156003059 has 2 divisors, whose sum is σ = 66156003060. Its totient is φ = 66156003058.

The previous prime is 66156003049. The next prime is 66156003079. The reversal of 66156003059 is 95030065166.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66156003059 is a prime.

It is not a weakly prime, because it can be changed into another prime (66156003019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33078001529 + 33078001530.

It is an arithmetic number, because the mean of its divisors is an integer number (33078001530).

Almost surely, 2^66156003059 is an apocalyptic number.

66156003059 is a deficient number, since it is larger than the sum of its proper divisors (1).

66156003059 is an equidigital number, since it uses as much as digits as its factorization.

66156003059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 41.

The spelling of 66156003059 in words is "sixty-six billion, one hundred fifty-six million, three thousand, fifty-nine".