66042134153 has 2 divisors, whose sum is σ = 66042134154. Its totient is φ = 66042134152.

The previous prime is 66042134117. The next prime is 66042134233. The reversal of 66042134153 is 35143124066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65255724304 + 786409849 = 255452^2 + 28043^2 .

It is a cyclic number.

It is not a de Polignac number, because 66042134153 - 2¹⁸ = 66041872009 is a prime.

It is not a weakly prime, because it can be changed into another prime (66042133153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33021067076 + 33021067077.

It is an arithmetic number, because the mean of its divisors is an integer number (33021067077).

Almost surely, 2^66042134153 is an apocalyptic number.

It is an amenable number.

66042134153 is a deficient number, since it is larger than the sum of its proper divisors (1).

66042134153 is an equidigital number, since it uses as much as digits as its factorization.

66042134153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 66042134153 in words is "sixty-six billion, forty-two million, one hundred thirty-four thousand, one hundred fifty-three".