16540554 has 16 divisors (see below), whose sum is σ = 33975648. Its totient is φ = 5364432.

The previous prime is 16540547. The next prime is 16540567. The reversal of 16540554 is 45504561.

16540554 = T₉₂₇ + T₉₂₈ + ... + T₉₆₃.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37032 + ... + 37475.

It is an arithmetic number, because the mean of its divisors is an integer number (2123478).

Almost surely, 2^16540554 is an apocalyptic number.

16540554 is an abundant number, since it is smaller than the sum of its proper divisors (17435094).

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

16540554 is a wasteful number, since it uses less digits than its factorization.

16540554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74549.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 16540554 is about 4067.0079911404. The cubic root of 16540554 is about 254.7905700659.

The spelling of 16540554 in words is "sixteen million, five hundred forty thousand, five hundred fifty-four".