16573787051 has 4 divisors (see below), whose sum is σ = 17294386512. Its totient is φ = 15853187592.

The previous prime is 16573787003. The next prime is 16573787053. The reversal of 16573787051 is 15078737561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15078737561 = 409 ⋅36867329.

It is a cyclic number.

It is not a de Polignac number, because 16573787051 - 2¹⁴ = 16573770667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16573787053) 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, 360299696 + ... + 360299741.

It is an arithmetic number, because the mean of its divisors is an integer number (4323596628).

Almost surely, 2^16573787051 is an apocalyptic number.

16573787051 is a deficient number, since it is larger than the sum of its proper divisors (720599461).

16573787051 is an equidigital number, since it uses as much as digits as its factorization.

16573787051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720599460.

The product of its (nonzero) digits is 1234800, while the sum is 50.

The spelling of 16573787051 in words is "sixteen billion, five hundred seventy-three million, seven hundred eighty-seven thousand, fifty-one".