77166366245011 has 4 divisors (see below), whose sum is σ = 80521425646992. Its totient is φ = 73811306843032.

The previous prime is 77166366244931. The next prime is 77166366245039. The reversal of 77166366245011 is 11054266366177.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77166366245011 - 2⁷ = 77166366244883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77166366045011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1677529700956 + ... + 1677529701001.

It is an arithmetic number, because the mean of its divisors is an integer number (20130356411748).

Almost surely, 2^{77166366245011} is an apocalyptic number.

77166366245011 is a deficient number, since it is larger than the sum of its proper divisors (3355059401981).

77166366245011 is a wasteful number, since it uses less digits than its factorization.

77166366245011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355059401980.

The product of its (nonzero) digits is 7620480, while the sum is 55.

The spelling of 77166366245011 in words is "seventy-seven trillion, one hundred sixty-six billion, three hundred sixty-six million, two hundred forty-five thousand, eleven".