16409325437 has 8 divisors (see below), whose sum is σ = 16486880256. Its totient is φ = 16331806512.

The previous prime is 16409325419. The next prime is 16409325473. The reversal of 16409325437 is 73452390461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16409325437 - 2¹⁰ = 16409324413 is a prime.

It is a super-2 number, since 2×16409325437² (a number of 21 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 (16409325407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1474508 + ... + 1485594.

It is an arithmetic number, because the mean of its divisors is an integer number (2060860032).

Almost surely, 2^16409325437 is an apocalyptic number.

It is an amenable number.

16409325437 is a deficient number, since it is larger than the sum of its proper divisors (77554819).

16409325437 is a wasteful number, since it uses less digits than its factorization.

16409325437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17947.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 16409325437 in words is "sixteen billion, four hundred nine million, three hundred twenty-five thousand, four hundred thirty-seven".