20654113843 has 8 divisors (see below), whose sum is σ = 22533788160. Its totient is φ = 18774777480.

The previous prime is 20654113829. The next prime is 20654113859. The reversal of 20654113843 is 34831145602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20654113843 - 2⁵ = 20654113811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20654113813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53046 + ... + 210052.

It is an arithmetic number, because the mean of its divisors is an integer number (2816723520).

Almost surely, 2^20654113843 is an apocalyptic number.

20654113843 is a deficient number, since it is larger than the sum of its proper divisors (1879674317).

20654113843 is a wasteful number, since it uses less digits than its factorization.

20654113843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168977.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 20654113843 in words is "twenty billion, six hundred fifty-four million, one hundred thirteen thousand, eight hundred forty-three".