21634003340662 has 16 divisors (see below), whose sum is σ = 32589851928480. Its totient is φ = 10770817525632.

The previous prime is 21634003340641. The next prime is 21634003340699. The reversal of 21634003340662 is 26604330043612.

It is a happy number.

It is a congruent number.

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, 24099018 + ... + 24980605.

It is an arithmetic number, because the mean of its divisors is an integer number (2036865745530).

Almost surely, 2^{21634003340662} is an apocalyptic number.

21634003340662 is a deficient number, since it is larger than the sum of its proper divisors (10955848587818).

21634003340662 is a wasteful number, since it uses less digits than its factorization.

21634003340662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49080567.

The product of its (nonzero) digits is 373248, while the sum is 40.

The spelling of 21634003340662 in words is "twenty-one trillion, six hundred thirty-four billion, three million, three hundred forty thousand, six hundred sixty-two".