16540100416 has 28 divisors (see below), whose sum is σ = 37510585888. Its totient is φ = 7088614272.

The previous prime is 16540100387. The next prime is 16540100429. The reversal of 16540100416 is 61400104561.

It is a tau number, because it is divible by the number of its divisors (28).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18459486 + ... + 18460381.

Almost surely, 2^16540100416 is an apocalyptic number.

16540100416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16540100416 is an abundant number, since it is smaller than the sum of its proper divisors (20970485472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16540100416 is an equidigital number, since it uses as much as digits as its factorization.

16540100416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36919886 (or 36919876 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 16540100416 its reverse (61400104561), we get a palindrome (77940204977).

The spelling of 16540100416 in words is "sixteen billion, five hundred forty million, one hundred thousand, four hundred sixteen".