16511415145 has 48 divisors (see below), whose sum is σ = 21659904000. Its totient is φ = 12067735680.

The previous prime is 16511415143. The next prime is 16511415149. The reversal of 16511415145 is 54151411561.

It is not a de Polignac number, because 16511415145 - 2¹ = 16511415143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16511415145.

It is not an unprimeable number, because it can be changed into a prime (16511415143) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6476331 + ... + 6478879.

It is an arithmetic number, because the mean of its divisors is an integer number (451248000).

Almost surely, 2^16511415145 is an apocalyptic number.

It is an amenable number.

16511415145 is a deficient number, since it is larger than the sum of its proper divisors (5148488855).

16511415145 is a wasteful number, since it uses less digits than its factorization.

16511415145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710 (or 2687 counting only the distinct ones).

The product of its digits is 12000, while the sum is 34.

The spelling of 16511415145 in words is "sixteen billion, five hundred eleven million, four hundred fifteen thousand, one hundred forty-five".