15521952225360 has 320 divisors, whose sum is σ = 56039342538240. Its totient is φ = 3480331345920.

The previous prime is 15521952225289. The next prime is 15521952225371. The reversal of 15521952225360 is 6352225912551.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 693521370 + ... + 693543750.

It is an arithmetic number, because the mean of its divisors is an integer number (175122945432).

Almost surely, 2^{15521952225360} is an apocalyptic number.

15521952225360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15521952225360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28019671269120).

15521952225360 is an abundant number, since it is smaller than the sum of its proper divisors (40517390312880).

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

15521952225360 is a wasteful number, since it uses less digits than its factorization.

15521952225360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30246 (or 30240 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 48.

The spelling of 15521952225360 in words is "fifteen trillion, five hundred twenty-one billion, nine hundred fifty-two million, two hundred twenty-five thousand, three hundred sixty".