20502535514 has 16 divisors (see below), whose sum is σ = 31150129920. Its totient is φ = 10119217680.

The previous prime is 20502535511. The next prime is 20502535519. The reversal of 20502535514 is 41553520502.

It is not an unprimeable number, because it can be changed into a prime (20502535511) 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, 846152 + ... + 870044.

It is an arithmetic number, because the mean of its divisors is an integer number (1946883120).

Almost surely, 2^20502535514 is an apocalyptic number.

20502535514 is a deficient number, since it is larger than the sum of its proper divisors (10647594406).

20502535514 is a wasteful number, since it uses less digits than its factorization.

20502535514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29405.

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 20502535514 in words is "twenty billion, five hundred two million, five hundred thirty-five thousand, five hundred fourteen".