105077720077 has 4 divisors (see below), whose sum is σ = 114630240096. Its totient is φ = 95525200060.

The previous prime is 105077720071. The next prime is 105077720089. The reversal of 105077720077 is 770027770501.

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, and also an emirpimes, since its reverse is a distinct semiprime: 770027770501 = 11 ⋅70002524591.

It is a cyclic number.

It is not a de Polignac number, because 105077720077 - 2³¹ = 102930236429 is a prime.

It is a super-2 number, since 2×105077720077² (a number of 23 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 (105077720071) 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, 4776259993 + ... + 4776260014.

It is an arithmetic number, because the mean of its divisors is an integer number (28657560024).

Almost surely, 2^105077720077 is an apocalyptic number.

It is an amenable number.

105077720077 is a deficient number, since it is larger than the sum of its proper divisors (9552520019).

105077720077 is an equidigital number, since it uses as much as digits as its factorization.

105077720077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9552520018.

The product of its (nonzero) digits is 168070, while the sum is 43.

The spelling of 105077720077 in words is "one hundred five billion, seventy-seven million, seven hundred twenty thousand, seventy-seven".