36551721141 has 48 divisors (see below), whose sum is σ = 59386908672. Its totient is φ = 21494880000.

The previous prime is 36551721127. The next prime is 36551721163. The reversal of 36551721141 is 14112715563.

36551721141 is a `hidden beast` number, since 36 + 551 + 72 + 1 + 1 + 4 + 1 = 666.

It is not a de Polignac number, because 36551721141 - 2⁵ = 36551721109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 36551721096 and 36551721105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36551721841) 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 47 ways as a sum of consecutive naturals, for example, 3091441 + ... + 3103241.

It is an arithmetic number, because the mean of its divisors is an integer number (1237227264).

Almost surely, 2^36551721141 is an apocalyptic number.

It is an amenable number.

36551721141 is a deficient number, since it is larger than the sum of its proper divisors (22835187531).

36551721141 is a wasteful number, since it uses less digits than its factorization.

36551721141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12994 (or 12991 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The spelling of 36551721141 in words is "thirty-six billion, five hundred fifty-one million, seven hundred twenty-one thousand, one hundred forty-one".