8068081554 has 48 divisors (see below), whose sum is σ = 18892672344. Its totient is φ = 2473632000.

The previous prime is 8068081537. The next prime is 8068081591. The reversal of 8068081554 is 4551808608.

It can be written as a sum of positive squares in 4 ways, for example, as 7776594225 + 291487329 = 88185^2 + 17073^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4404 + ... + 127104.

Almost surely, 2^8068081554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8068081554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9446336172).

8068081554 is an abundant number, since it is smaller than the sum of its proper divisors (10824590790).

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

8068081554 is a wasteful number, since it uses less digits than its factorization.

8068081554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123003 (or 123000 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 45.

The square root of 8068081554 is about 89822.5002658020. The cubic root of 8068081554 is about 2005.6574444051.

The spelling of 8068081554 in words is "eight billion, sixty-eight million, eighty-one thousand, five hundred fifty-four".