16540164003 has 8 divisors (see below), whose sum is σ = 24058420416. Its totient is φ = 10024341800.

The previous prime is 16540163989. The next prime is 16540164013. The reversal of 16540164003 is 30046104561.

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

It is not a de Polignac number, because 16540164003 - 2¹² = 16540159907 is a prime.

It is a super-2 number, since 2×16540164003² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16540164013) 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, 250608513 + ... + 250608578.

It is an arithmetic number, because the mean of its divisors is an integer number (3007302552).

Almost surely, 2^16540164003 is an apocalyptic number.

16540164003 is a deficient number, since it is larger than the sum of its proper divisors (7518256413).

16540164003 is a wasteful number, since it uses less digits than its factorization.

16540164003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501217105.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 16540164003 its reverse (30046104561), we get a palindrome (46586268564).

The spelling of 16540164003 in words is "sixteen billion, five hundred forty million, one hundred sixty-four thousand, three".