213151250466 has 128 divisors (see below), whose sum is σ = 592162283520. Its totient is φ = 55212710400.

The previous prime is 213151250443. The next prime is 213151250503. The reversal of 213151250466 is 664052151312.

213151250466 is a `hidden beast` number, since 2 + 1 + 31 + 512 + 50 + 4 + 66 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 213151250466.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1456146 + ... + 1595826.

It is an arithmetic number, because the mean of its divisors is an integer number (4626267840).

Almost surely, 2^213151250466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213151250466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296081141760).

213151250466 is an abundant number, since it is smaller than the sum of its proper divisors (379011033054).

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

213151250466 is a wasteful number, since it uses less digits than its factorization.

213151250466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140077 (or 140071 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 213151250466 in words is "two hundred thirteen billion, one hundred fifty-one million, two hundred fifty thousand, four hundred sixty-six".