55622898511878 has 16 divisors (see below), whose sum is σ = 113832908582976. Its totient is φ = 18109780910760.

The previous prime is 55622898511867. The next prime is 55622898511879. The reversal of 55622898511878 is 87811589822655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55622898511879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107796314688 + ... + 107796315203.

It is an arithmetic number, because the mean of its divisors is an integer number (7114556786436).

Almost surely, 2^{55622898511878} is an apocalyptic number.

55622898511878 is an abundant number, since it is smaller than the sum of its proper divisors (58210010071098).

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

55622898511878 is a wasteful number, since it uses less digits than its factorization.

55622898511878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215592629939.

The product of its digits is 774144000, while the sum is 75.

The spelling of 55622898511878 in words is "fifty-five trillion, six hundred twenty-two billion, eight hundred ninety-eight million, five hundred eleven thousand, eight hundred seventy-eight".