66126002811019 has 8 divisors (see below), whose sum is σ = 66781822781520. Its totient is φ = 65470204548000.

The previous prime is 66126002810983. The next prime is 66126002811049. The reversal of 66126002811019 is 91011820062166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66126002811019 is a prime.

It is a super-2 number, since 2×66126002811019² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66126002811049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 730272 + ... + 11523250.

It is an arithmetic number, because the mean of its divisors is an integer number (8347727847690).

Almost surely, 2^{66126002811019} is an apocalyptic number.

66126002811019 is a deficient number, since it is larger than the sum of its proper divisors (655819970501).

66126002811019 is a wasteful number, since it uses less digits than its factorization.

66126002811019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10853741.

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 66126002811019 in words is "sixty-six trillion, one hundred twenty-six billion, two million, eight hundred eleven thousand, nineteen".