16551555151 has 2 divisors, whose sum is σ = 16551555152. Its totient is φ = 16551555150.

The previous prime is 16551555143. The next prime is 16551555169. The reversal of 16551555151 is 15155515561.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16551555151 - 2³ = 16551555143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16551555121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8275777575 + 8275777576.

It is an arithmetic number, because the mean of its divisors is an integer number (8275777576).

Almost surely, 2^16551555151 is an apocalyptic number.

16551555151 is a deficient number, since it is larger than the sum of its proper divisors (1).

16551555151 is an equidigital number, since it uses as much as digits as its factorization.

16551555151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93750, while the sum is 40.

The spelling of 16551555151 in words is "sixteen billion, five hundred fifty-one million, five hundred fifty-five thousand, one hundred fifty-one".