5155220433321 has 64 divisors (see below), whose sum is σ = 8791001763840. Its totient is φ = 2924738668800.

The previous prime is 5155220433281. The next prime is 5155220433329. The reversal of 5155220433321 is 1233340225515.

5155220433321 is a `hidden beast` number, since 51 + 5 + 52 + 204 + 33 + 321 = 666.

It is not a de Polignac number, because 5155220433321 - 2⁷ = 5155220433193 is a prime.

It is a super-2 number, since 2×5155220433321² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5155220433329) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 53405326 + ... + 53501768.

It is an arithmetic number, because the mean of its divisors is an integer number (137359402560).

Almost surely, 2^{5155220433321} is an apocalyptic number.

It is an amenable number.

5155220433321 is a deficient number, since it is larger than the sum of its proper divisors (3635781330519).

5155220433321 is a wasteful number, since it uses less digits than its factorization.

5155220433321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98483 (or 98477 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 5155220433321 its reverse (1233340225515), we get a palindrome (6388560658836).

The spelling of 5155220433321 in words is "five trillion, one hundred fifty-five billion, two hundred twenty million, four hundred thirty-three thousand, three hundred twenty-one".