20612727766 has 32 divisors (see below), whose sum is σ = 33532507008. Its totient is φ = 9465106560.

The previous prime is 20612727721. The next prime is 20612727827. The reversal of 20612727766 is 66772721602.

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, 1588581 + ... + 1601503.

It is an arithmetic number, because the mean of its divisors is an integer number (1047890844).

Almost surely, 2^20612727766 is an apocalyptic number.

20612727766 is a deficient number, since it is larger than the sum of its proper divisors (12919779242).

20612727766 is a wasteful number, since it uses less digits than its factorization.

20612727766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14076.

The product of its (nonzero) digits is 592704, while the sum is 46.

The spelling of 20612727766 in words is "twenty billion, six hundred twelve million, seven hundred twenty-seven thousand, seven hundred sixty-six".