101816578055 has 8 divisors (see below), whose sum is σ = 123552702000. Its totient is φ = 80538056896.

The previous prime is 101816578021. The next prime is 101816578063. The reversal of 101816578055 is 550875618101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101816578055 - 2¹² = 101816573959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114400205 + ... + 114401094.

It is an arithmetic number, because the mean of its divisors is an integer number (15444087750).

Almost surely, 2^101816578055 is an apocalyptic number.

101816578055 is a deficient number, since it is larger than the sum of its proper divisors (21736123945).

101816578055 is an equidigital number, since it uses as much as digits as its factorization.

101816578055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228801393.

The product of its (nonzero) digits is 336000, while the sum is 47.

The spelling of 101816578055 in words is "one hundred one billion, eight hundred sixteen million, five hundred seventy-eight thousand, fifty-five".