8138775558016 has 32 divisors (see below), whose sum is σ = 16330614211800. Its totient is φ = 4040111599104.

The previous prime is 8138775558013. The next prime is 8138775558029. The reversal of 8138775558016 is 6108555778318.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8138775558013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228702295 + ... + 228737878.

Almost surely, 2^{8138775558016} is an apocalyptic number.

It is an amenable number.

8138775558016 is an abundant number, since it is smaller than the sum of its proper divisors (8191838653784).

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

8138775558016 is a wasteful number, since it uses less digits than its factorization.

8138775558016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457440326 (or 457440314 counting only the distinct ones).

The product of its (nonzero) digits is 56448000, while the sum is 64.

The spelling of 8138775558016 in words is "eight trillion, one hundred thirty-eight billion, seven hundred seventy-five million, five hundred fifty-eight thousand, sixteen".