20516760278 has 8 divisors (see below), whose sum is σ = 35171589072. Its totient is φ = 8792897256.

The previous prime is 20516760223. The next prime is 20516760307. The reversal of 20516760278 is 87206761502.

20516760278 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

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 3 ways as a sum of consecutive naturals, for example, 732741425 + ... + 732741452.

It is an arithmetic number, because the mean of its divisors is an integer number (4396448634).

Almost surely, 2^20516760278 is an apocalyptic number.

20516760278 is a deficient number, since it is larger than the sum of its proper divisors (14654828794).

20516760278 is a wasteful number, since it uses less digits than its factorization.

20516760278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465482886.

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 20516760278 in words is "twenty billion, five hundred sixteen million, seven hundred sixty thousand, two hundred seventy-eight".