16506145630 has 64 divisors (see below), whose sum is σ = 32727784320. Its totient is φ = 5956194816.

The previous prime is 16506145627. The next prime is 16506145637. The reversal of 16506145630 is 3654160561.

It is a self number, because there is not a number n which added to its sum of digits gives 16506145630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16506145637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1807516 + ... + 1816624.

It is an arithmetic number, because the mean of its divisors is an integer number (511371630).

Almost surely, 2^16506145630 is an apocalyptic number.

16506145630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16506145630 is a deficient number, since it is larger than the sum of its proper divisors (16221638690).

16506145630 is a wasteful number, since it uses less digits than its factorization.

16506145630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9445.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 16506145630 in words is "sixteen billion, five hundred six million, one hundred forty-five thousand, six hundred thirty".