3661557922 has 32 divisors (see below), whose sum is σ = 6203563200. Its totient is φ = 1605576000.

The previous prime is 3661557917. The next prime is 3661557943. The reversal of 3661557922 is 2297551663.

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 15 ways as a sum of consecutive naturals, for example, 1211329 + ... + 1214347.

It is an arithmetic number, because the mean of its divisors is an integer number (193861350).

Almost surely, 2^3661557922 is an apocalyptic number.

3661557922 is a deficient number, since it is larger than the sum of its proper divisors (2542005278).

3661557922 is a wasteful number, since it uses less digits than its factorization.

3661557922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4962.

The product of its digits is 680400, while the sum is 46.

The square root of 3661557922 is about 60510.8083072768. The cubic root of 3661557922 is about 1541.3051736812.

The spelling of 3661557922 in words is "three billion, six hundred sixty-one million, five hundred fifty-seven thousand, nine hundred twenty-two".