15352161312 has 96 divisors (see below), whose sum is σ = 41030164224. Its totient is φ = 5025081600.

The previous prime is 15352161283. The next prime is 15352161343. The reversal of 15352161312 is 21316125351.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×15352161312² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15352161312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2125387 + ... + 2132597.

It is an arithmetic number, because the mean of its divisors is an integer number (427397544).

Almost surely, 2^15352161312 is an apocalyptic number.

15352161312 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 15352161312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20515082112).

15352161312 is an abundant number, since it is smaller than the sum of its proper divisors (25678002912).

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

15352161312 is a wasteful number, since it uses less digits than its factorization.

15352161312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7622 (or 7614 counting only the distinct ones).

The product of its digits is 5400, while the sum is 30.

Adding to 15352161312 its reverse (21316125351), we get a palindrome (36668286663).

The spelling of 15352161312 in words is "fifteen billion, three hundred fifty-two million, one hundred sixty-one thousand, three hundred twelve".