16050165621 has 32 divisors (see below), whose sum is σ = 25800053760. Its totient is φ = 8670105216.

The previous prime is 16050165619. The next prime is 16050165629. The reversal of 16050165621 is 12656105061.

It is not a de Polignac number, because 16050165621 - 2¹ = 16050165619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16050165629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143265 + ... + 229401.

It is an arithmetic number, because the mean of its divisors is an integer number (806251680).

Almost surely, 2^16050165621 is an apocalyptic number.

It is an amenable number.

16050165621 is a deficient number, since it is larger than the sum of its proper divisors (9749888139).

16050165621 is a wasteful number, since it uses less digits than its factorization.

16050165621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86633.

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 16050165621 in words is "sixteen billion, fifty million, one hundred sixty-five thousand, six hundred twenty-one".