4405620404551 has 4 divisors (see below), whose sum is σ = 4405850398152. Its totient is φ = 4405390410952.

The previous prime is 4405620404519. The next prime is 4405620404573. The reversal of 4405620404551 is 1554040265044.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4405620404551 - 2⁵ = 4405620404519 is a prime.

It is a super-2 number, since 2×4405620404551² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4405620404051) 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 3 ways as a sum of consecutive naturals, for example, 114968065 + ... + 115006378.

It is an arithmetic number, because the mean of its divisors is an integer number (1101462599538).

Almost surely, 2^{4405620404551} is an apocalyptic number.

4405620404551 is a deficient number, since it is larger than the sum of its proper divisors (229993601).

4405620404551 is a wasteful number, since it uses less digits than its factorization.

4405620404551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229993600.

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 4405620404551 its reverse (1554040265044), we get a palindrome (5959660669595).

The spelling of 4405620404551 in words is "four trillion, four hundred five billion, six hundred twenty million, four hundred four thousand, five hundred fifty-one".