21601630341711 has 24 divisors (see below), whose sum is σ = 36148325102240. Its totient is φ = 12174695767296.

The previous prime is 21601630341703. The next prime is 21601630341721. The reversal of 21601630341711 is 11714303610612.

21601630341711 is a `hidden beast` number, since 2 + 1 + 6 + 0 + 1 + 630 + 3 + 4 + 1 + 7 + 11 = 666.

It is not a de Polignac number, because 21601630341711 - 2³ = 21601630341703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21601630341721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2348509246 + ... + 2348518443.

Almost surely, 2^{21601630341711} is an apocalyptic number.

21601630341711 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

21601630341711 is a deficient number, since it is larger than the sum of its proper divisors (14546694760529).

21601630341711 is a wasteful number, since it uses less digits than its factorization.

21601630341711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4697027775 (or 4697027772 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 21601630341711 in words is "twenty-one trillion, six hundred one billion, six hundred thirty million, three hundred forty-one thousand, seven hundred eleven".