4106666778 has 128 divisors (see below), whose sum is σ = 9209376000. Its totient is φ = 1215295488.

The previous prime is 4106666777. The next prime is 4106666789. The reversal of 4106666778 is 8776666014.

4106666778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 4106666778.

It is not an unprimeable number, because it can be changed into a prime (4106666777) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27561448 + ... + 27561596.

It is an arithmetic number, because the mean of its divisors is an integer number (71948250).

Almost surely, 2^4106666778 is an apocalyptic number.

4106666778 is an abundant number, since it is smaller than the sum of its proper divisors (5102709222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4106666778 is a wasteful number, since it uses less digits than its factorization.

4106666778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384.

The product of its (nonzero) digits is 2032128, while the sum is 51.

The square root of 4106666778 is about 64083.2800190502. The cubic root of 4106666778 is about 1601.3876994688.

The spelling of 4106666778 in words is "four billion, one hundred six million, six hundred sixty-six thousand, seven hundred seventy-eight".