3661055401 has 8 divisors (see below), whose sum is σ = 3732185160. Its totient is φ = 3590001792.

The previous prime is 3661055393. The next prime is 3661055443. The reversal of 3661055401 is 1045501663.

It can be written as a sum of positive squares in 4 ways, for example, as 2886268176 + 774787225 = 53724^2 + 27835^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3661055401 - 2³ = 3661055393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3661055491) 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 7 ways as a sum of consecutive naturals, for example, 83335 + ... + 119443.

It is an arithmetic number, because the mean of its divisors is an integer number (466523145).

Almost surely, 2^3661055401 is an apocalyptic number.

It is an amenable number.

3661055401 is a deficient number, since it is larger than the sum of its proper divisors (71129759).

3661055401 is a wasteful number, since it uses less digits than its factorization.

3661055401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38075.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 3661055401 is about 60506.6558404941. The cubic root of 3661055401 is about 1541.2346596477.

The spelling of 3661055401 in words is "three billion, six hundred sixty-one million, fifty-five thousand, four hundred one".