1552660121320 has 64 divisors (see below), whose sum is σ = 4355514115200. Its totient is φ = 483946010880.

The previous prime is 1552660121317. The next prime is 1552660121329. The reversal of 1552660121320 is 231210662551.

It is a super-3 number, since 3×1552660121320³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1552660121329) 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 15 ways as a sum of consecutive naturals, for example, 252052135 + ... + 252058294.

It is an arithmetic number, because the mean of its divisors is an integer number (68054908050).

Almost surely, 2^{1552660121320} is an apocalyptic number.

1552660121320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1552660121320 is an abundant number, since it is smaller than the sum of its proper divisors (2802853993880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1552660121320 is a wasteful number, since it uses less digits than its factorization.

1552660121320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504110458 (or 504110454 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

Adding to 1552660121320 its reverse (231210662551), we get a palindrome (1783870783871).

The spelling of 1552660121320 in words is "one trillion, five hundred fifty-two billion, six hundred sixty million, one hundred twenty-one thousand, three hundred twenty".