23278178055 has 32 divisors (see below), whose sum is σ = 42032079360. Its totient is φ = 10897201280.

The previous prime is 23278178009. The next prime is 23278178059. The reversal of 23278178055 is 55087187232.

It is not a de Polignac number, because 23278178055 - 2⁷ = 23278177927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23278177995 and 23278178013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23278178059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2427627 + ... + 2437196.

It is an arithmetic number, because the mean of its divisors is an integer number (1313502480).

Almost surely, 2^23278178055 is an apocalyptic number.

23278178055 is a deficient number, since it is larger than the sum of its proper divisors (18753901305).

23278178055 is a wasteful number, since it uses less digits than its factorization.

23278178055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4864871.

The product of its (nonzero) digits is 940800, while the sum is 48.

The spelling of 23278178055 in words is "twenty-three billion, two hundred seventy-eight million, one hundred seventy-eight thousand, fifty-five".