677223645455 has 32 divisors (see below), whose sum is σ = 931352599680. Its totient is φ = 463088793600.

The previous prime is 677223645431. The next prime is 677223645463. The reversal of 677223645455 is 554546322776.

It is not a de Polignac number, because 677223645455 - 2¹⁰ = 677223644431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 677223645455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28795241 + ... + 28818749.

It is an arithmetic number, because the mean of its divisors is an integer number (29104768740).

Almost surely, 2^677223645455 is an apocalyptic number.

677223645455 is a deficient number, since it is larger than the sum of its proper divisors (254128954225).

677223645455 is a wasteful number, since it uses less digits than its factorization.

677223645455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25779.

The product of its digits is 42336000, while the sum is 56.

The spelling of 677223645455 in words is "six hundred seventy-seven billion, two hundred twenty-three million, six hundred forty-five thousand, four hundred fifty-five".