215451266163 has 8 divisors (see below), whose sum is σ = 328306691328. Its totient is φ = 123115009224.

The previous prime is 215451266159. The next prime is 215451266179. The reversal of 215451266163 is 361662154512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 215451266163 - 2² = 215451266159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215451266183) 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, 5129792031 + ... + 5129792072.

It is an arithmetic number, because the mean of its divisors is an integer number (41038336416).

Almost surely, 2^215451266163 is an apocalyptic number.

215451266163 is a deficient number, since it is larger than the sum of its proper divisors (112855425165).

215451266163 is a wasteful number, since it uses less digits than its factorization.

215451266163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10259584113.

The product of its digits is 259200, while the sum is 42.

The spelling of 215451266163 in words is "two hundred fifteen billion, four hundred fifty-one million, two hundred sixty-six thousand, one hundred sixty-three".