8119121566 has 16 divisors (see below), whose sum is σ = 12514078224. Its totient is φ = 3947871744.

The previous prime is 8119121519. The next prime is 8119121597. The reversal of 8119121566 is 6651219118.

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, 127806 + ... + 180478.

It is an arithmetic number, because the mean of its divisors is an integer number (782129889).

Almost surely, 2^8119121566 is an apocalyptic number.

8119121566 is a deficient number, since it is larger than the sum of its proper divisors (4394956658).

8119121566 is a wasteful number, since it uses less digits than its factorization.

8119121566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54795.

The product of its digits is 25920, while the sum is 40.

The square root of 8119121566 is about 90106.1683016207. The cubic root of 8119121566 is about 2009.8779300965.

The spelling of 8119121566 in words is "eight billion, one hundred nineteen million, one hundred twenty-one thousand, five hundred sixty-six".