8154664563 has 8 divisors (see below), whose sum is σ = 10952250768. Its totient is φ = 5396760704.

The previous prime is 8154664561. The next prime is 8154664591. The reversal of 8154664563 is 3654664518.

8154664563 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8154664563 - 2¹ = 8154664561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8154664561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9920106 + ... + 9920927.

It is an arithmetic number, because the mean of its divisors is an integer number (1369031346).

Almost surely, 2^8154664563 is an apocalyptic number.

8154664563 is a deficient number, since it is larger than the sum of its proper divisors (2797586205).

8154664563 is a wasteful number, since it uses less digits than its factorization.

8154664563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19841173.

The product of its digits is 2073600, while the sum is 48.

The square root of 8154664563 is about 90303.1813559190. The cubic root of 8154664563 is about 2012.8065348850.

The spelling of 8154664563 in words is "eight billion, one hundred fifty-four million, six hundred sixty-four thousand, five hundred sixty-three".