20545304055311 has 8 divisors (see below), whose sum is σ = 23688138178464. Its totient is φ = 17454417603840.

The previous prime is 20545304055191. The next prime is 20545304055329. The reversal of 20545304055311 is 11355040354502.

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

It is a de Polignac number, because none of the positive numbers 2^k-20545304055311 is a prime.

It is a super-3 number, since 3×20545304055311³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20545304055361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12986917070 + ... + 12986918651.

It is an arithmetic number, because the mean of its divisors is an integer number (2961017272308).

Almost surely, 2^{20545304055311} is an apocalyptic number.

20545304055311 is a deficient number, since it is larger than the sum of its proper divisors (3142834123153).

20545304055311 is a wasteful number, since it uses less digits than its factorization.

20545304055311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25973835841.

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 20545304055311 in words is "twenty trillion, five hundred forty-five billion, three hundred four million, fifty-five thousand, three hundred eleven".