20724013766 has 8 divisors (see below), whose sum is σ = 31087091304. Its totient is φ = 10361650000.

The previous prime is 20724013759. The next prime is 20724013769. The reversal of 20724013766 is 66731042702.

20724013766 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20724013769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98735 + ... + 226266.

It is an arithmetic number, because the mean of its divisors is an integer number (3885886413).

Almost surely, 2^20724013766 is an apocalyptic number.

20724013766 is a deficient number, since it is larger than the sum of its proper divisors (10363077538).

20724013766 is a wasteful number, since it uses less digits than its factorization.

20724013766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356886.

The product of its (nonzero) digits is 84672, while the sum is 38.

The spelling of 20724013766 in words is "twenty billion, seven hundred twenty-four million, thirteen thousand, seven hundred sixty-six".