215574120552 has 192 divisors, whose sum is σ = 642981888000. Its totient is φ = 60026219904.

The previous prime is 215574120551. The next prime is 215574120577. The reversal of 215574120552 is 255021475512.

It is a self number, because there is not a number n which added to its sum of digits gives 215574120552.

It is not an unprimeable number, because it can be changed into a prime (215574120551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13201849 + ... + 13218167.

It is an arithmetic number, because the mean of its divisors is an integer number (3348864000).

Almost surely, 2^215574120552 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 215574120552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321490944000).

215574120552 is an abundant number, since it is smaller than the sum of its proper divisors (427407767448).

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

215574120552 is a wasteful number, since it uses less digits than its factorization.

215574120552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16628 (or 16617 counting only the distinct ones).

The product of its (nonzero) digits is 140000, while the sum is 39.

The spelling of 215574120552 in words is "two hundred fifteen billion, five hundred seventy-four million, one hundred twenty thousand, five hundred fifty-two".