20068536514 has 16 divisors (see below), whose sum is σ = 32557549752. Its totient is φ = 9222645888.

The previous prime is 20068536503. The next prime is 20068536517. The reversal of 20068536514 is 41563586002.

It can be written as a sum of positive squares in 4 ways, for example, as 8227397025 + 11841139489 = 90705^2 + 108817^2 .

It is not an unprimeable number, because it can be changed into a prime (20068536517) 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, 1650309 + ... + 1662424.

Almost surely, 2^20068536514 is an apocalyptic number.

20068536514 is a deficient number, since it is larger than the sum of its proper divisors (12489013238).

20068536514 is a wasteful number, since it uses less digits than its factorization.

20068536514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3312981.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 20068536514 in words is "twenty billion, sixty-eight million, five hundred thirty-six thousand, five hundred fourteen".