16512430051 has 4 divisors (see below), whose sum is σ = 17782616992. Its totient is φ = 15242243112.

The previous prime is 16512430049. The next prime is 16512430057. The reversal of 16512430051 is 15003421561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15003421561 = 103 ⋅145664287.

It is a cyclic number.

It is not a de Polignac number, because 16512430051 - 2¹ = 16512430049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16512430057) 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, 635093451 + ... + 635093476.

It is an arithmetic number, because the mean of its divisors is an integer number (4445654248).

Almost surely, 2^16512430051 is an apocalyptic number.

16512430051 is a deficient number, since it is larger than the sum of its proper divisors (1270186941).

16512430051 is a wasteful number, since it uses less digits than its factorization.

16512430051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270186940.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 16512430051 in words is "sixteen billion, five hundred twelve million, four hundred thirty thousand, fifty-one".