16021511162 has 4 divisors (see below), whose sum is σ = 24032266746. Its totient is φ = 8010755580.

The previous prime is 16021511141. The next prime is 16021511201. The reversal of 16021511162 is 26111512061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12086583721 + 3934927441 = 109939^2 + 62729^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4005377789 + ... + 4005377792.

Almost surely, 2^16021511162 is an apocalyptic number.

16021511162 is a deficient number, since it is larger than the sum of its proper divisors (8010755584).

16021511162 is an equidigital number, since it uses as much as digits as its factorization.

16021511162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8010755583.

The product of its (nonzero) digits is 720, while the sum is 26.

The spelling of 16021511162 in words is "sixteen billion, twenty-one million, five hundred eleven thousand, one hundred sixty-two".