16452051516 has 18 divisors (see below), whose sum is σ = 41587130312. Its totient is φ = 5484017160.

The previous prime is 16452051491. The next prime is 16452051533. The reversal of 16452051516 is 61515025461.

16452051516 is a `hidden beast` number, since 1 + 645 + 2 + 0 + 5 + 1 + 5 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 457001431 = 16452051516 / (1 + 6 + 4 + 5 + 2 + 0 + 5 + 1 + 5 + 1 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 228500680 + ... + 228500751.

Almost surely, 2^16452051516 is an apocalyptic number.

It is an amenable number.

16452051516 is an abundant number, since it is smaller than the sum of its proper divisors (25135078796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16452051516 is a wasteful number, since it uses less digits than its factorization.

16452051516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457001441 (or 457001436 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

Adding to 16452051516 its reverse (61515025461), we get a palindrome (77967076977).

The spelling of 16452051516 in words is "sixteen billion, four hundred fifty-two million, fifty-one thousand, five hundred sixteen".