20466453077 has 16 divisors (see below), whose sum is σ = 23514369792. Its totient is φ = 17449810560.

The previous prime is 20466453071. The next prime is 20466453089. The reversal of 20466453077 is 77035466402.

It is not a de Polignac number, because 20466453077 - 2⁴ = 20466453061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20466453071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1057427 + ... + 1076607.

It is an arithmetic number, because the mean of its divisors is an integer number (1469648112).

Almost surely, 2^20466453077 is an apocalyptic number.

It is an amenable number.

20466453077 is a deficient number, since it is larger than the sum of its proper divisors (3047916715).

20466453077 is a wasteful number, since it uses less digits than its factorization.

20466453077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19988.

The product of its (nonzero) digits is 846720, while the sum is 44.

The spelling of 20466453077 in words is "twenty billion, four hundred sixty-six million, four hundred fifty-three thousand, seventy-seven".