20361135500 has 48 divisors (see below), whose sum is σ = 44485930944. Its totient is φ = 8141302400.

The previous prime is 20361135493. The next prime is 20361135523. The reversal of 20361135500 is 553116302.

It is a self number, because there is not a number n which added to its sum of digits gives 20361135500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1622249 + ... + 1634751.

It is an arithmetic number, because the mean of its divisors is an integer number (926790228).

Almost surely, 2^20361135500 is an apocalyptic number.

20361135500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20361135500 is an abundant number, since it is smaller than the sum of its proper divisors (24124795444).

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

20361135500 is a wasteful number, since it uses less digits than its factorization.

20361135500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15779 (or 15767 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The spelling of 20361135500 in words is "twenty billion, three hundred sixty-one million, one hundred thirty-five thousand, five hundred".