16131450613421 has 16 divisors (see below), whose sum is σ = 20066436307008. Its totient is φ = 12740594476800.

The previous prime is 16131450613393. The next prime is 16131450613427. The reversal of 16131450613421 is 12431605413161.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16131450613421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16131450613427) 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, 3317860715 + ... + 3317865576.

It is an arithmetic number, because the mean of its divisors is an integer number (1254152269188).

Almost surely, 2^{16131450613421} is an apocalyptic number.

16131450613421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16131450613421 is a deficient number, since it is larger than the sum of its proper divisors (3934985693587).

16131450613421 is a wasteful number, since it uses less digits than its factorization.

16131450613421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6635726332.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 16131450613421 in words is "sixteen trillion, one hundred thirty-one billion, four hundred fifty million, six hundred thirteen thousand, four hundred twenty-one".