101818554788 has 6 divisors (see below), whose sum is σ = 178182470886. Its totient is φ = 50909277392.

The previous prime is 101818554749. The next prime is 101818554791. The reversal of 101818554788 is 887455818101.

101818554788 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 78292516864 + 23526037924 = 279808^2 + 153382^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12727319345 + ... + 12727319352.

It is an arithmetic number, because the mean of its divisors is an integer number (29697078481).

Almost surely, 2^101818554788 is an apocalyptic number.

It is an amenable number.

101818554788 is a deficient number, since it is larger than the sum of its proper divisors (76363916098).

101818554788 is a wasteful number, since it uses less digits than its factorization.

101818554788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25454638701 (or 25454638699 counting only the distinct ones).

The product of its (nonzero) digits is 2867200, while the sum is 56.

The spelling of 101818554788 in words is "one hundred one billion, eight hundred eighteen million, five hundred fifty-four thousand, seven hundred eighty-eight".