21150061160 has 32 divisors (see below), whose sum is σ = 47591776800. Its totient is φ = 8459288640.

The previous prime is 21150061159. The next prime is 21150061181. The reversal of 21150061160 is 6116005112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902795 + ... + 925925.

It is an arithmetic number, because the mean of its divisors is an integer number (1487243025).

Almost surely, 2^21150061160 is an apocalyptic number.

21150061160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21150061160 is an abundant number, since it is smaller than the sum of its proper divisors (26441715640).

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

21150061160 is a wasteful number, since it uses less digits than its factorization.

21150061160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46001 (or 45997 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 21150061160 its reverse (6116005112), we get a palindrome (27266066272).

The spelling of 21150061160 in words is "twenty-one billion, one hundred fifty million, sixty-one thousand, one hundred sixty".