1552534021612 has 72 divisors (see below), whose sum is σ = 3184767406800. Its totient is φ = 660270675456.

The previous prime is 1552534021607. The next prime is 1552534021663. The reversal of 1552534021612 is 2161204352551.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62567064 + ... + 62591872.

It is an arithmetic number, because the mean of its divisors is an integer number (44232880650).

Almost surely, 2^{1552534021612} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1552534021612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1592383703400).

1552534021612 is an abundant number, since it is smaller than the sum of its proper divisors (1632233385188).

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

1552534021612 is a wasteful number, since it uses less digits than its factorization.

1552534021612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27263 (or 27254 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 1552534021612 in words is "one trillion, five hundred fifty-two billion, five hundred thirty-four million, twenty-one thousand, six hundred twelve".