16351295490431 has 16 divisors (see below), whose sum is σ = 17854072744608. Its totient is φ = 14851239091200.

The previous prime is 16351295490403. The next prime is 16351295490499. The reversal of 16351295490431 is 13409459215361.

It is a cyclic number.

It is not a de Polignac number, because 16351295490431 - 2¹⁰ = 16351295489407 is a prime.

It is a super-2 number, since 2×16351295490431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16351295490031) 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, 68479691 + ... + 68718051.

It is an arithmetic number, because the mean of its divisors is an integer number (1115879546538).

Almost surely, 2^{16351295490431} is an apocalyptic number.

16351295490431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16351295490431 is a deficient number, since it is larger than the sum of its proper divisors (1502777254177).

16351295490431 is a wasteful number, since it uses less digits than its factorization.

16351295490431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244042.

The product of its (nonzero) digits is 3499200, while the sum is 53.

The spelling of 16351295490431 in words is "sixteen trillion, three hundred fifty-one billion, two hundred ninety-five million, four hundred ninety thousand, four hundred thirty-one".