16051943149 has 16 divisors (see below), whose sum is σ = 18412035840. Its totient is φ = 13858488000.

The previous prime is 16051943143. The next prime is 16051943183. The reversal of 16051943149 is 94134915061.

It is a cyclic number.

It is not a de Polignac number, because 16051943149 - 2⁹ = 16051942637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16051943143) 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, 392997 + ... + 431914.

It is an arithmetic number, because the mean of its divisors is an integer number (1150752240).

Almost surely, 2^16051943149 is an apocalyptic number.

It is an amenable number.

16051943149 is a deficient number, since it is larger than the sum of its proper divisors (2360092691).

16051943149 is a wasteful number, since it uses less digits than its factorization.

16051943149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825012.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 16051943149 in words is "sixteen billion, fifty-one million, nine hundred forty-three thousand, one hundred forty-nine".