16106500551 has 4 divisors (see below), whose sum is σ = 21475334072. Its totient is φ = 10737667032.

The previous prime is 16106500549. The next prime is 16106500607. The reversal of 16106500551 is 15500560161.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16106500551 - 2¹ = 16106500549 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 (16106502551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2684416756 + ... + 2684416761.

It is an arithmetic number, because the mean of its divisors is an integer number (5368833518).

Almost surely, 2^16106500551 is an apocalyptic number.

16106500551 is a deficient number, since it is larger than the sum of its proper divisors (5368833521).

16106500551 is an equidigital number, since it uses as much as digits as its factorization.

16106500551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5368833520.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 16106500551 in words is "sixteen billion, one hundred six million, five hundred thousand, five hundred fifty-one".