3581623552065 has 128 divisors (see below), whose sum is σ = 6442415357952. Its totient is φ = 1687150632960.

The previous prime is 3581623552049. The next prime is 3581623552121. The reversal of 3581623552065 is 5602553261853.

It is a happy number.

It is not a de Polignac number, because 3581623552065 - 2⁴ = 3581623552049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3581623551999 and 3581623552017.

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 127 ways as a sum of consecutive naturals, for example, 778104054 + ... + 778108656.

It is an arithmetic number, because the mean of its divisors is an integer number (50331369984).

Almost surely, 2^{3581623552065} is an apocalyptic number.

It is an amenable number.

3581623552065 is a deficient number, since it is larger than the sum of its proper divisors (2860791805887).

3581623552065 is a wasteful number, since it uses less digits than its factorization.

3581623552065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6079.

The product of its (nonzero) digits is 6480000, while the sum is 51.

The spelling of 3581623552065 in words is "three trillion, five hundred eighty-one billion, six hundred twenty-three million, five hundred fifty-two thousand, sixty-five".