20345536036 has 24 divisors (see below), whose sum is σ = 40704042176. Its totient is φ = 8716736160.

The previous prime is 20345536009. The next prime is 20345536073. The reversal of 20345536036 is 63063554302.

It is a junction number, because it is equal to n+sod(n) for n = 20345535986 and 20345536004.

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, 25146 + ... + 203281.

Almost surely, 2^20345536036 is an apocalyptic number.

It is an amenable number.

20345536036 is an abundant number, since it is smaller than the sum of its proper divisors (20358506140).

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

20345536036 is a wasteful number, since it uses less digits than its factorization.

20345536036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231619 (or 231617 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 37.

The spelling of 20345536036 in words is "twenty billion, three hundred forty-five million, five hundred thirty-six thousand, thirty-six".