36561110520 has 256 divisors, whose sum is σ = 127700582400. Its totient is φ = 8275599360.

The previous prime is 36561110513. The next prime is 36561110533. The reversal of 36561110520 is 2501116563.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2843466 + ... + 2856294.

It is an arithmetic number, because the mean of its divisors is an integer number (498830400).

Almost surely, 2^36561110520 is an apocalyptic number.

36561110520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36561110520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63850291200).

36561110520 is an abundant number, since it is smaller than the sum of its proper divisors (91139471880).

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

36561110520 is a wasteful number, since it uses less digits than its factorization.

36561110520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12998 (or 12994 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 36561110520 in words is "thirty-six billion, five hundred sixty-one million, one hundred ten thousand, five hundred twenty".