66054734119 has 16 divisors (see below), whose sum is σ = 72506689920. Its totient is φ = 59677689760.

The previous prime is 66054734113. The next prime is 66054734131. The reversal of 66054734119 is 91143745066.

It is a cyclic number.

It is not a de Polignac number, because 66054734119 - 2¹⁹ = 66054209831 is a prime.

It is a super-2 number, since 2×66054734119² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66054734113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3509217 + ... + 3527989.

It is an arithmetic number, because the mean of its divisors is an integer number (4531668120).

Almost surely, 2^66054734119 is an apocalyptic number.

66054734119 is a deficient number, since it is larger than the sum of its proper divisors (6451955801).

66054734119 is a wasteful number, since it uses less digits than its factorization.

66054734119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20750.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 66054734119 in words is "sixty-six billion, fifty-four million, seven hundred thirty-four thousand, one hundred nineteen".