20924604427361 has 32 divisors (see below), whose sum is σ = 21512267763840. Its totient is φ = 20348133120000.

The previous prime is 20924604427357. The next prime is 20924604427379. The reversal of 20924604427361 is 16372440642902.

It is a cyclic number.

It is not a de Polignac number, because 20924604427361 - 2² = 20924604427357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20924604421361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1137135761 + ... + 1137154161.

It is an arithmetic number, because the mean of its divisors is an integer number (672258367620).

Almost surely, 2^{20924604427361} is an apocalyptic number.

It is an amenable number.

20924604427361 is a deficient number, since it is larger than the sum of its proper divisors (587663336479).

20924604427361 is a wasteful number, since it uses less digits than its factorization.

20924604427361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19505.

The product of its (nonzero) digits is 3483648, while the sum is 50.

The spelling of 20924604427361 in words is "twenty trillion, nine hundred twenty-four billion, six hundred four million, four hundred twenty-seven thousand, three hundred sixty-one".