16620147315 has 36 divisors (see below), whose sum is σ = 28972607664. Its totient is φ = 8813793888.

The previous prime is 16620147311. The next prime is 16620147331. The reversal of 16620147315 is 51374102661.

16620147315 is a `hidden beast` number, since 1 + 6 + 620 + 14 + 7 + 3 + 15 = 666.

It is not a de Polignac number, because 16620147315 - 2² = 16620147311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16620147315.

It is not an unprimeable number, because it can be changed into a prime (16620147311) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1436082 + ... + 1447608.

Almost surely, 2^16620147315 is an apocalyptic number.

16620147315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16620147315 is a deficient number, since it is larger than the sum of its proper divisors (12352460349).

16620147315 is a wasteful number, since it uses less digits than its factorization.

16620147315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11896 (or 11714 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

Adding to 16620147315 its reverse (51374102661), we get a palindrome (67994249976).

The spelling of 16620147315 in words is "sixteen billion, six hundred twenty million, one hundred forty-seven thousand, three hundred fifteen".