20005101764641 has 8 divisors (see below), whose sum is σ = 22864226151104. Its totient is φ = 17146290554640.

The previous prime is 20005101764621. The next prime is 20005101764779. The reversal of 20005101764641 is 14646710150002.

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

It is a cyclic number.

It is not a de Polignac number, because 20005101764641 - 2²¹ = 20005099667489 is a prime.

It is a super-2 number, since 2×20005101764641² (a number of 27 digits) contains 22 as substring.

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 20005101764641.

It is not an unprimeable number, because it can be changed into a prime (20005101764621) 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 7 ways as a sum of consecutive naturals, for example, 78157215 + ... + 78412756.

It is an arithmetic number, because the mean of its divisors is an integer number (2858028268888).

Almost surely, 2^{20005101764641} is an apocalyptic number.

It is an amenable number.

20005101764641 is a deficient number, since it is larger than the sum of its proper divisors (2859124386463).

20005101764641 is a wasteful number, since it uses less digits than its factorization.

20005101764641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156588231.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 20005101764641 in words is "twenty trillion, five billion, one hundred one million, seven hundred sixty-four thousand, six hundred forty-one".