16550156011 has 4 divisors (see below), whose sum is σ = 16554203632. Its totient is φ = 16546108392.

The previous prime is 16550155943. The next prime is 16550156027. The reversal of 16550156011 is 11065105561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11065105561 = 2609 ⋅4241129.

It is a cyclic number.

It is not a de Polignac number, because 16550156011 - 2²⁵ = 16516601579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16550106011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2017671 + ... + 2025856.

It is an arithmetic number, because the mean of its divisors is an integer number (4138550908).

Almost surely, 2^16550156011 is an apocalyptic number.

16550156011 is a deficient number, since it is larger than the sum of its proper divisors (4047621).

16550156011 is an equidigital number, since it uses as much as digits as its factorization.

16550156011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4047620.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 16550156011 in words is "sixteen billion, five hundred fifty million, one hundred fifty-six thousand, eleven".