555464332121331 has 16 divisors (see below), whose sum is σ = 741553667930880. Its totient is φ = 369842337221280.

The previous prime is 555464332121327. The next prime is 555464332121381. The reversal of 555464332121331 is 133121233464555.

It is a happy number.

It is not a de Polignac number, because 555464332121331 - 2² = 555464332121327 is a prime.

It is a super-2 number, since 2×555464332121331² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (555464332121381) 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, 28347121 + ... + 43754861.

It is an arithmetic number, because the mean of its divisors is an integer number (46347104245680).

Almost surely, 2^{555464332121331} is an apocalyptic number.

555464332121331 is a deficient number, since it is larger than the sum of its proper divisors (186089335809549).

555464332121331 is a wasteful number, since it uses less digits than its factorization.

555464332121331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15422906.

The product of its digits is 3888000, while the sum is 48.

Adding to 555464332121331 its reverse (133121233464555), we get a palindrome (688585565585886).

The spelling of 555464332121331 in words is "five hundred fifty-five trillion, four hundred sixty-four billion, three hundred thirty-two million, one hundred twenty-one thousand, three hundred thirty-one".