20473120077 has 16 divisors (see below), whose sum is σ = 28906113600. Its totient is φ = 12844596992.

The previous prime is 20473120049. The next prime is 20473120079. The reversal of 20473120077 is 77002137402.

It is a cyclic number.

It is not a de Polignac number, because 20473120077 - 2¹⁶ = 20473054541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20473120079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1007338 + ... + 1027460.

It is an arithmetic number, because the mean of its divisors is an integer number (1806632100).

Almost surely, 2^20473120077 is an apocalyptic number.

It is an amenable number.

20473120077 is a deficient number, since it is larger than the sum of its proper divisors (8432993523).

20473120077 is a wasteful number, since it uses less digits than its factorization.

20473120077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40092.

The product of its (nonzero) digits is 16464, while the sum is 33.

Adding to 20473120077 its reverse (77002137402), we get a palindrome (97475257479).

The spelling of 20473120077 in words is "twenty billion, four hundred seventy-three million, one hundred twenty thousand, seventy-seven".