3661555052 has 12 divisors (see below), whose sum is σ = 6479718840. Its totient is φ = 1810206816.

The previous prime is 3661555019. The next prime is 3661555123. The reversal of 3661555052 is 2505551663.

It is a junction number, because it is equal to n+sod(n) for n = 3661554997 and 3661555015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5142278 + ... + 5142989.

It is an arithmetic number, because the mean of its divisors is an integer number (539976570).

Almost surely, 2^3661555052 is an apocalyptic number.

It is an amenable number.

3661555052 is a deficient number, since it is larger than the sum of its proper divisors (2818163788).

3661555052 is a wasteful number, since it uses less digits than its factorization.

3661555052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10285360 (or 10285358 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 38.

The square root of 3661555052 is about 60510.7845925005. The cubic root of 3661555052 is about 1541.3047709794.

The spelling of 3661555052 in words is "three billion, six hundred sixty-one million, five hundred fifty-five thousand, fifty-two".