36546221240 has 64 divisors (see below), whose sum is σ = 87478976160. Its totient is φ = 13693317120.

The previous prime is 36546221219. The next prime is 36546221249. The reversal of 36546221240 is 4212264563.

It is a self number, because there is not a number n which added to its sum of digits gives 36546221240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36546221249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16124 + ... + 270836.

Almost surely, 2^36546221240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36546221240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43739488080).

36546221240 is an abundant number, since it is smaller than the sum of its proper divisors (50932754920).

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

36546221240 is a wasteful number, since it uses less digits than its factorization.

36546221240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254952 (or 254948 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 36546221240 in words is "thirty-six billion, five hundred forty-six million, two hundred twenty-one thousand, two hundred forty".