16331131142540 has 48 divisors (see below), whose sum is σ = 34510189377888. Its totient is φ = 6491571800064.

The previous prime is 16331131142509. The next prime is 16331131142549. The reversal of 16331131142540 is 4524113113361.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16331131142540.

It is not an unprimeable number, because it can be changed into a prime (16331131142549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6074204 + ... + 8340156.

It is an arithmetic number, because the mean of its divisors is an integer number (718962278706).

Almost surely, 2^{16331131142540} is an apocalyptic number.

16331131142540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16331131142540 is an abundant number, since it is smaller than the sum of its proper divisors (18179058235348).

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

16331131142540 is a wasteful number, since it uses less digits than its factorization.

16331131142540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268218 (or 2268216 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 16331131142540 in words is "sixteen trillion, three hundred thirty-one billion, one hundred thirty-one million, one hundred forty-two thousand, five hundred forty".