12151161536 has 112 divisors (see below), whose sum is σ = 26288634240. Its totient is φ = 5550182400.

The previous prime is 12151161521. The next prime is 12151161541. The reversal of 12151161536 is 63516115121.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 8373611 + ... + 8375061.

Almost surely, 2^12151161536 is an apocalyptic number.

12151161536 is a gapful number since it is divisible by the number (16) 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 12151161536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13144317120).

12151161536 is an abundant number, since it is smaller than the sum of its proper divisors (14137472704).

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

12151161536 is a wasteful number, since it uses less digits than its factorization.

12151161536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702 (or 1692 counting only the distinct ones).

The product of its digits is 5400, while the sum is 32.

Adding to 12151161536 its reverse (63516115121), we get a palindrome (75667276657).

The spelling of 12151161536 in words is "twelve billion, one hundred fifty-one million, one hundred sixty-one thousand, five hundred thirty-six".