16152221515 has 8 divisors (see below), whose sum is σ = 19600449120. Its totient is φ = 12776588352.

The previous prime is 16152221507. The next prime is 16152221551. The reversal of 16152221515 is 51512225161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16152221515 - 2³ = 16152221507 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18148119 + ... + 18149008.

It is an arithmetic number, because the mean of its divisors is an integer number (2450056140).

Almost surely, 2^16152221515 is an apocalyptic number.

16152221515 is a deficient number, since it is larger than the sum of its proper divisors (3448227605).

16152221515 is an equidigital number, since it uses as much as digits as its factorization.

16152221515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36297221.

The product of its digits is 6000, while the sum is 31.

Adding to 16152221515 its reverse (51512225161), we get a palindrome (67664446676).

The spelling of 16152221515 in words is "sixteen billion, one hundred fifty-two million, two hundred twenty-one thousand, five hundred fifteen".