440205661553554 has 16 divisors (see below), whose sum is σ = 711218545819992. Its totient is φ = 203138388782208.

The previous prime is 440205661553531. The next prime is 440205661553563. The reversal of 440205661553554 is 455355166502044.

It can be written as a sum of positive squares in 4 ways, for example, as 378544769075529 + 61660892478025 = 19456227^2 + 7852445^2 .

It is a junction number, because it is equal to n+sod(n) for n = 440205661553495 and 440205661553504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1393797889 + ... + 1394113684.

Almost surely, 2^{440205661553554} is an apocalyptic number.

440205661553554 is a deficient number, since it is larger than the sum of its proper divisors (271012884266438).

440205661553554 is a wasteful number, since it uses less digits than its factorization.

440205661553554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787917661.

The product of its (nonzero) digits is 43200000, while the sum is 55.

The spelling of 440205661553554 in words is "four hundred forty trillion, two hundred five billion, six hundred sixty-one million, five hundred fifty-three thousand, five hundred fifty-four".