16507072051 has 4 divisors (see below), whose sum is σ = 16593496704. Its totient is φ = 16420647400.

The previous prime is 16507072039. The next prime is 16507072069. The reversal of 16507072051 is 15027070561.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15027070561 = 122477 ⋅122693.

It is a cyclic number.

It is not a de Polignac number, because 16507072051 - 2¹⁷ = 16506940979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16507071998 and 16507072016.

It is not an unprimeable number, because it can be changed into a prime (16507070051) 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, 43212040 + ... + 43212421.

It is an arithmetic number, because the mean of its divisors is an integer number (4148374176).

Almost surely, 2^16507072051 is an apocalyptic number.

16507072051 is a deficient number, since it is larger than the sum of its proper divisors (86424653).

16507072051 is an equidigital number, since it uses as much as digits as its factorization.

16507072051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86424652.

The product of its (nonzero) digits is 14700, while the sum is 34.

The spelling of 16507072051 in words is "sixteen billion, five hundred seven million, seventy-two thousand, fifty-one".