36661271325 has 48 divisors (see below), whose sum is σ = 69697491456. Its totient is φ = 16656580800.

The previous prime is 36661271321. The next prime is 36661271329. The reversal of 36661271325 is 52317216663.

It is an interprime number because it is at equal distance from previous prime (36661271321) and next prime (36661271329).

It is not a de Polignac number, because 36661271325 - 2² = 36661271321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36661271321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 128631 + ... + 299780.

It is an arithmetic number, because the mean of its divisors is an integer number (1452031072).

Almost surely, 2^36661271325 is an apocalyptic number.

36661271325 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

36661271325 is a deficient number, since it is larger than the sum of its proper divisors (33036220131).

36661271325 is a wasteful number, since it uses less digits than its factorization.

36661271325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428594 (or 428589 counting only the distinct ones).

The product of its digits is 272160, while the sum is 42.

Adding to 36661271325 its reverse (52317216663), we get a palindrome (88978487988).

The spelling of 36661271325 in words is "thirty-six billion, six hundred sixty-one million, two hundred seventy-one thousand, three hundred twenty-five".