36581646552 has 64 divisors (see below), whose sum is σ = 103208428800. Its totient is φ = 10703091840.

The previous prime is 36581646539. The next prime is 36581646553. The reversal of 36581646552 is 25564618563.

It is a junction number, because it is equal to n+sod(n) for n = 36581646495 and 36581646504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36581646553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2381428 + ... + 2396739.

It is an arithmetic number, because the mean of its divisors is an integer number (1612631700).

Almost surely, 2^36581646552 is an apocalyptic number.

It is an amenable number.

36581646552 is an abundant number, since it is smaller than the sum of its proper divisors (66626782248).

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

36581646552 is a wasteful number, since it uses less digits than its factorization.

36581646552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4778216 (or 4778212 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 51.

The spelling of 36581646552 in words is "thirty-six billion, five hundred eighty-one million, six hundred forty-six thousand, five hundred fifty-two".