215610162160 has 60 divisors (see below), whose sum is σ = 515208540168. Its totient is φ = 83913101568.

The previous prime is 215610162143. The next prime is 215610162253. The reversal of 215610162160 is 61261016512.

It is a super-4 number, since 4×215610162160⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 874822 + ... + 1093861.

Almost surely, 2^215610162160 is an apocalyptic number.

215610162160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215610162160 is an abundant number, since it is smaller than the sum of its proper divisors (299598378008).

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

215610162160 is a wasteful number, since it uses less digits than its factorization.

215610162160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968770 (or 1968727 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

Adding to 215610162160 its reverse (61261016512), we get a palindrome (276871178672).

The spelling of 215610162160 in words is "two hundred fifteen billion, six hundred ten million, one hundred sixty-two thousand, one hundred sixty".