215151042050 has 96 divisors (see below), whose sum is σ = 500951329920. Its totient is φ = 67032806400.

The previous prime is 215151042047. The next prime is 215151042089. The reversal of 215151042050 is 50240151512.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 450896 + ... + 795995.

It is an arithmetic number, because the mean of its divisors is an integer number (5218243020).

Almost surely, 2^215151042050 is an apocalyptic number.

215151042050 is an abundant number, since it is smaller than the sum of its proper divisors (285800287870).

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

215151042050 is a wasteful number, since it uses less digits than its factorization.

215151042050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246956 (or 1246951 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 215151042050 its reverse (50240151512), we get a palindrome (265391193562).

The spelling of 215151042050 in words is "two hundred fifteen billion, one hundred fifty-one million, forty-two thousand, fifty".