21460705160 has 16 divisors (see below), whose sum is σ = 48286586700. Its totient is φ = 8584282048.

The previous prime is 21460705121. The next prime is 21460705177. The reversal of 21460705160 is 6150706412.

It can be written as a sum of positive squares in 2 ways, for example, as 20581345444 + 879359716 = 143462^2 + 29654^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268258775 + ... + 268258854.

Almost surely, 2^21460705160 is an apocalyptic number.

21460705160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21460705160 is an abundant number, since it is smaller than the sum of its proper divisors (26825881540).

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

21460705160 is a wasteful number, since it uses less digits than its factorization.

21460705160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536517640 (or 536517636 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 21460705160 in words is "twenty-one billion, four hundred sixty million, seven hundred five thousand, one hundred sixty".