77766261106 has 8 divisors (see below), whose sum is σ = 116678199024. Its totient is φ = 38873528100.

The previous prime is 77766261073. The next prime is 77766261107. The reversal of 77766261106 is 60116266777.

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

It is a self number, because there is not a number n which added to its sum of digits gives 77766261106.

It is not an unprimeable number, because it can be changed into a prime (77766261107) 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, 4791100 + ... + 4807303.

It is an arithmetic number, because the mean of its divisors is an integer number (14584774878).

Almost surely, 2^77766261106 is an apocalyptic number.

77766261106 is a deficient number, since it is larger than the sum of its proper divisors (38911937918).

77766261106 is a wasteful number, since it uses less digits than its factorization.

77766261106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9602456.

The product of its (nonzero) digits is 889056, while the sum is 49.

The spelling of 77766261106 in words is "seventy-seven billion, seven hundred sixty-six million, two hundred sixty-one thousand, one hundred six".