216135145154 has 8 divisors (see below), whose sum is σ = 328768953408. Its totient is φ = 106545494020.

The previous prime is 216135145141. The next prime is 216135145159. The reversal of 216135145154 is 451541531612.

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

It is not an unprimeable number, because it can be changed into a prime (216135145159) 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, 761039102 + ... + 761039385.

It is an arithmetic number, because the mean of its divisors is an integer number (41096119176).

Almost surely, 2^216135145154 is an apocalyptic number.

216135145154 is a deficient number, since it is larger than the sum of its proper divisors (112633808254).

216135145154 is a wasteful number, since it uses less digits than its factorization.

216135145154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522078560.

The product of its digits is 72000, while the sum is 38.

Adding to 216135145154 its reverse (451541531612), we get a palindrome (667676676766).

The spelling of 216135145154 in words is "two hundred sixteen billion, one hundred thirty-five million, one hundred forty-five thousand, one hundred fifty-four".