20573007077 has 8 divisors (see below), whose sum is σ = 23669808000. Its totient is φ = 17515656144.

The previous prime is 20573007067. The next prime is 20573007083. The reversal of 20573007077 is 77070037502.

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

It is not a de Polignac number, because 20573007077 - 2⁴ = 20573007061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20573007077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20573007047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9861377 + ... + 9863462.

It is an arithmetic number, because the mean of its divisors is an integer number (2958726000).

Almost surely, 2^20573007077 is an apocalyptic number.

It is an amenable number.

20573007077 is a deficient number, since it is larger than the sum of its proper divisors (3096800923).

20573007077 is a wasteful number, since it uses less digits than its factorization.

20573007077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19724995.

The product of its (nonzero) digits is 72030, while the sum is 38.

The spelling of 20573007077 in words is "twenty billion, five hundred seventy-three million, seven thousand, seventy-seven".