20600505078 has 16 divisors (see below), whose sum is σ = 41876437296. Its totient is φ = 6754263840.

The previous prime is 20600505041. The next prime is 20600505103. The reversal of 20600505078 is 87050500602.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 28142401 + ... + 28143132.

It is an arithmetic number, because the mean of its divisors is an integer number (2617277331).

Almost surely, 2^20600505078 is an apocalyptic number.

20600505078 is an abundant number, since it is smaller than the sum of its proper divisors (21275932218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20600505078 is a wasteful number, since it uses less digits than its factorization.

20600505078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56285599.

The product of its (nonzero) digits is 16800, while the sum is 33.

The spelling of 20600505078 in words is "twenty billion, six hundred million, five hundred five thousand, seventy-eight".