20401106505076 has 12 divisors (see below), whose sum is σ = 38947566964320. Its totient is φ = 9273230229560.

The previous prime is 20401106505011. The next prime is 20401106505079. The reversal of 20401106505076 is 67050560110402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20401106505079) 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 3 ways as a sum of consecutive naturals, for example, 231830755696 + ... + 231830755783.

It is an arithmetic number, because the mean of its divisors is an integer number (3245630580360).

Almost surely, 2^{20401106505076} is an apocalyptic number.

It is an amenable number.

20401106505076 is a deficient number, since it is larger than the sum of its proper divisors (18546460459244).

20401106505076 is a wasteful number, since it uses less digits than its factorization.

20401106505076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463661511494 (or 463661511492 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

Adding to 20401106505076 its reverse (67050560110402), we get a palindrome (87451666615478).

The spelling of 20401106505076 in words is "twenty trillion, four hundred one billion, one hundred six million, five hundred five thousand, seventy-six".