20165734677136 has 10 divisors (see below), whose sum is σ = 39071110936982. Its totient is φ = 10082867338560.

The previous prime is 20165734677097. The next prime is 20165734677139. The reversal of 20165734677136 is 63177643756102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15739945369600 + 4425789307536 = 3967360^2 + 2103756^2 .

It is a super-2 number, since 2×20165734677136² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20165734677139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630179208645 + ... + 630179208676.

Almost surely, 2^{20165734677136} is an apocalyptic number.

It is an amenable number.

20165734677136 is a deficient number, since it is larger than the sum of its proper divisors (18905376259846).

20165734677136 is a wasteful number, since it uses less digits than its factorization.

20165734677136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260358417329 (or 1260358417323 counting only the distinct ones).

The product of its (nonzero) digits is 26671680, while the sum is 58.

The spelling of 20165734677136 in words is "twenty trillion, one hundred sixty-five billion, seven hundred thirty-four million, six hundred seventy-seven thousand, one hundred thirty-six".