77121126300165 has 8 divisors (see below), whose sum is σ = 123393802080288. Its totient is φ = 41131267360080.

The previous prime is 77121126300107. The next prime is 77121126300167. The reversal of 77121126300165 is 56100362112177.

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

It is not a de Polignac number, because 77121126300165 - 2¹² = 77121126296069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77121126300167) 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, 2570704209991 + ... + 2570704210020.

It is an arithmetic number, because the mean of its divisors is an integer number (15424225260036).

Almost surely, 2^{77121126300165} is an apocalyptic number.

It is an amenable number.

77121126300165 is a deficient number, since it is larger than the sum of its proper divisors (46272675780123).

77121126300165 is a wasteful number, since it uses less digits than its factorization.

77121126300165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5141408420019.

The product of its (nonzero) digits is 105840, while the sum is 42.

The spelling of 77121126300165 in words is "seventy-seven trillion, one hundred twenty-one billion, one hundred twenty-six million, three hundred thousand, one hundred sixty-five".