3661125475 has 24 divisors (see below), whose sum is σ = 5218371360. Its totient is φ = 2495953920.

The previous prime is 3661125401. The next prime is 3661125493. The reversal of 3661125475 is 5745211663.

It is not a de Polignac number, because 3661125475 - 2¹⁹ = 3660601187 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 30190 + ... + 90739.

It is an arithmetic number, because the mean of its divisors is an integer number (217432140).

Almost surely, 2^3661125475 is an apocalyptic number.

3661125475 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3661125475 is a deficient number, since it is larger than the sum of its proper divisors (1557245885).

3661125475 is a wasteful number, since it uses less digits than its factorization.

3661125475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121119 (or 121114 counting only the distinct ones).

The product of its digits is 151200, while the sum is 40.

The square root of 3661125475 is about 60507.2348979855. The cubic root of 3661125475 is about 1541.2444928585.

The spelling of 3661125475 in words is "three billion, six hundred sixty-one million, one hundred twenty-five thousand, four hundred seventy-five".