16551077 has 4 divisors (see below), whose sum is σ = 16798176. Its totient is φ = 16303980.

The previous prime is 16551061. The next prime is 16551079. The reversal of 16551077 is 77015561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16551077 - 2⁴ = 16551061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16551079) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 123449 + ... + 123582.

It is an arithmetic number, because the mean of its divisors is an integer number (4199544).

Almost surely, 2^16551077 is an apocalyptic number.

It is an amenable number.

16551077 is a deficient number, since it is larger than the sum of its proper divisors (247099).

16551077 is an equidigital number, since it uses as much as digits as its factorization.

16551077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247098.

The product of its (nonzero) digits is 7350, while the sum is 32.

The square root of 16551077 is about 4068.3014883364. The cubic root of 16551077 is about 254.8445906827.

The spelling of 16551077 in words is "sixteen million, five hundred fifty-one thousand, seventy-seven".