4155772646 has 8 divisors (see below), whose sum is σ = 6234186384. Its totient is φ = 2077710520.

The previous prime is 4155772627. The next prime is 4155772667. The reversal of 4155772646 is 6462775514.

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 4155772646.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 56045 + ... + 107016.

It is an arithmetic number, because the mean of its divisors is an integer number (779273298).

Almost surely, 2^4155772646 is an apocalyptic number.

4155772646 is a deficient number, since it is larger than the sum of its proper divisors (2078413738).

4155772646 is a wasteful number, since it uses less digits than its factorization.

4155772646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175806.

The product of its digits is 1411200, while the sum is 47.

The square root of 4155772646 is about 64465.2824860017. The cubic root of 4155772646 is about 1607.7453421606.

The spelling of 4155772646 in words is "four billion, one hundred fifty-five million, seven hundred seventy-two thousand, six hundred forty-six".