21465426606 has 32 divisors (see below), whose sum is σ = 46238801280. Its totient is φ = 6603950304.

The previous prime is 21465426599. The next prime is 21465426617. The reversal of 21465426606 is 60662456412.

It is a congruent number.

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, 1266021 + ... + 1282863.

It is an arithmetic number, because the mean of its divisors is an integer number (1444962540).

Almost surely, 2^21465426606 is an apocalyptic number.

21465426606 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

21465426606 is an abundant number, since it is smaller than the sum of its proper divisors (24773374674).

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

21465426606 is a wasteful number, since it uses less digits than its factorization.

21465426606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33200.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 21465426606 in words is "twenty-one billion, four hundred sixty-five million, four hundred twenty-six thousand, six hundred six".