21160466160506 has 16 divisors (see below), whose sum is σ = 32892112932840. Its totient is φ = 10197693112320.

The previous prime is 21160466160499. The next prime is 21160466160511. The reversal of 21160466160506 is 60506166406112.

It can be written as a sum of positive squares in 4 ways, for example, as 20958587583025 + 201878577481 = 4578055^2 + 449309^2 .

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, 316115255 + ... + 316182186.

Almost surely, 2^{21160466160506} is an apocalyptic number.

21160466160506 is a deficient number, since it is larger than the sum of its proper divisors (11731646772334).

21160466160506 is a wasteful number, since it uses less digits than its factorization.

21160466160506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632298049.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 21160466160506 in words is "twenty-one trillion, one hundred sixty billion, four hundred sixty-six million, one hundred sixty thousand, five hundred six".