12162532440 has 32 divisors (see below), whose sum is σ = 36487597680. Its totient is φ = 3243341952.

The previous prime is 12162532427. The next prime is 12162532471. The reversal of 12162532440 is 4423526121.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12162532398 and 12162532407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50677099 + ... + 50677338.

Almost surely, 2^12162532440 is an apocalyptic number.

12162532440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12162532440 is an abundant number, since it is smaller than the sum of its proper divisors (24325065240).

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

12162532440 is a wasteful number, since it uses less digits than its factorization.

12162532440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101354451 (or 101354447 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 12162532440 in words is "twelve billion, one hundred sixty-two million, five hundred thirty-two thousand, four hundred forty".