15215343471552 has 448 divisors, whose sum is σ = 46931820816384. Its totient is φ = 4260826644480.

The previous prime is 15215343471551. The next prime is 15215343471563. The reversal of 15215343471552 is 25517434351251.

It is a tau number, because it is divible by the number of its divisors (448).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15215343471551) 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, 17837447958 + ... + 17837448810.

It is an arithmetic number, because the mean of its divisors is an integer number (104758528608).

Almost surely, 2^{15215343471552} is an apocalyptic number.

15215343471552 is a gapful number since it is divisible by the number (12) 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 15215343471552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23465910408192).

15215343471552 is an abundant number, since it is smaller than the sum of its proper divisors (31716477344832).

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

15215343471552 is a wasteful number, since it uses less digits than its factorization.

15215343471552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876 (or 1866 counting only the distinct ones).

The product of its digits is 2520000, while the sum is 48.

The spelling of 15215343471552 in words is "fifteen trillion, two hundred fifteen billion, three hundred forty-three million, four hundred seventy-one thousand, five hundred fifty-two".