404011405420551 has 12 divisors (see below), whose sum is σ = 614286347423320. Its totient is φ = 255165098160240.

The previous prime is 404011405420501. The next prime is 404011405420559. The reversal of 404011405420551 is 155024504110404.

404011405420551 is a `hidden beast` number, since 4 + 0 + 4 + 0 + 11 + 40 + 54 + 2 + 0 + 551 = 666.

It is not a de Polignac number, because 404011405420551 - 2⁶ = 404011405420487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404011405420559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1181319898720 + ... + 1181319899061.

Almost surely, 2^{404011405420551} is an apocalyptic number.

404011405420551 is a deficient number, since it is larger than the sum of its proper divisors (210274942002769).

404011405420551 is a wasteful number, since it uses less digits than its factorization.

404011405420551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362639797806 (or 2362639797803 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

Adding to 404011405420551 its reverse (155024504110404), we get a palindrome (559035909530955).

The spelling of 404011405420551 in words is "four hundred four trillion, eleven billion, four hundred five million, four hundred twenty thousand, five hundred fifty-one".