21148060960 has 96 divisors (see below), whose sum is σ = 56637524160. Its totient is φ = 7397526528.

The previous prime is 21148060957. The next prime is 21148060981. The reversal of 21148060960 is 6906084112.

It is a happy number.

It is a super-2 number, since 2×21148060960² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228042 + ... + 307081.

It is an arithmetic number, because the mean of its divisors is an integer number (589974210).

Almost surely, 2^21148060960 is an apocalyptic number.

21148060960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21148060960 is an abundant number, since it is smaller than the sum of its proper divisors (35489463200).

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

21148060960 is a wasteful number, since it uses less digits than its factorization.

21148060960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535170 (or 535162 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 21148060960 in words is "twenty-one billion, one hundred forty-eight million, sixty thousand, nine hundred sixty".