20540523036 has 24 divisors (see below), whose sum is σ = 52284968064. Its totient is φ = 6224400880.

The previous prime is 20540522957. The next prime is 20540523041. The reversal of 20540523036 is 63032504502.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20540522994 and 20540523012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77804880 + ... + 77805143.

It is an arithmetic number, because the mean of its divisors is an integer number (2178540336).

Almost surely, 2^20540523036 is an apocalyptic number.

It is an amenable number.

20540523036 is an abundant number, since it is smaller than the sum of its proper divisors (31744445028).

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

20540523036 is a wasteful number, since it uses less digits than its factorization.

20540523036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155610041 (or 155610039 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The spelling of 20540523036 in words is "twenty billion, five hundred forty million, five hundred twenty-three thousand, thirty-six".