1404220023551 has 16 divisors (see below), whose sum is σ = 1489537378560. Its totient is φ = 1320045517440.

The previous prime is 1404220023541. The next prime is 1404220023559. The reversal of 1404220023551 is 1553200224041.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1404220023551 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 (1404220023559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48986615 + ... + 49015271.

It is an arithmetic number, because the mean of its divisors is an integer number (93096086160).

Almost surely, 2^{1404220023551} is an apocalyptic number.

1404220023551 is a deficient number, since it is larger than the sum of its proper divisors (85317355009).

1404220023551 is a wasteful number, since it uses less digits than its factorization.

1404220023551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48494.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 1404220023551 its reverse (1553200224041), we get a palindrome (2957420247592).

The spelling of 1404220023551 in words is "one trillion, four hundred four billion, two hundred twenty million, twenty-three thousand, five hundred fifty-one".