66011001062777 has 4 divisors (see below), whose sum is σ = 66016399864656. Its totient is φ = 66005602260900.

The previous prime is 66011001062771. The next prime is 66011001062779. The reversal of 66011001062777 is 77726010011066.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66011001062777 - 2³⁴ = 65993821193593 is a prime.

It is a super-2 number, since 2×66011001062777² (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 (66011001062771) 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 3 ways as a sum of consecutive naturals, for example, 2699382599 + ... + 2699407052.

It is an arithmetic number, because the mean of its divisors is an integer number (16504099966164).

Almost surely, 2^{66011001062777} is an apocalyptic number.

It is an amenable number.

66011001062777 is a deficient number, since it is larger than the sum of its proper divisors (5398801879).

66011001062777 is a wasteful number, since it uses less digits than its factorization.

66011001062777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5398801878.

The product of its (nonzero) digits is 148176, while the sum is 44.

The spelling of 66011001062777 in words is "sixty-six trillion, eleven billion, one million, sixty-two thousand, seven hundred seventy-seven".