20005153735077 has 72 divisors (see below), whose sum is σ = 33964378733376. Its totient is φ = 11312997220224.

The previous prime is 20005153735037. The next prime is 20005153735079. The reversal of 20005153735077 is 77053735150002.

20005153735077 is a `hidden beast` number, since 2 + 0 + 0 + 0 + 515 + 37 + 35 + 0 + 77 = 666.

It is not a de Polignac number, because 20005153735077 - 2⁷ = 20005153734949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20005153735079) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 16119553 + ... + 17316185.

It is an arithmetic number, because the mean of its divisors is an integer number (471727482408).

Almost surely, 2^{20005153735077} is an apocalyptic number.

It is an amenable number.

20005153735077 is a deficient number, since it is larger than the sum of its proper divisors (13959224998299).

20005153735077 is a wasteful number, since it uses less digits than its factorization.

20005153735077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197047 (or 1197037 counting only the distinct ones).

The product of its (nonzero) digits is 771750, while the sum is 45.

Adding to 20005153735077 its reverse (77053735150002), we get a palindrome (97058888885079).

The spelling of 20005153735077 in words is "twenty trillion, five billion, one hundred fifty-three million, seven hundred thirty-five thousand, seventy-seven".