16403091937 has 8 divisors (see below), whose sum is σ = 17399740896. Its totient is φ = 15409972032.

The previous prime is 16403091919. The next prime is 16403091983. The reversal of 16403091937 is 73919030461.

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 16403091937 - 2¹¹ = 16403089889 is a prime.

It is a super-2 number, since 2×16403091937² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16403091893 and 16403091902.

It is not an unprimeable number, because it can be changed into a prime (16403091997) 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, 872683 + ... + 891280.

It is an arithmetic number, because the mean of its divisors is an integer number (2174967612).

Almost surely, 2^16403091937 is an apocalyptic number.

16403091937 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16403091937 is a deficient number, since it is larger than the sum of its proper divisors (996648959).

16403091937 is a wasteful number, since it uses less digits than its factorization.

16403091937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764527.

The product of its (nonzero) digits is 122472, while the sum is 43.

The spelling of 16403091937 in words is "sixteen billion, four hundred three million, ninety-one thousand, nine hundred thirty-seven".