16515150601 has 4 divisors (see below), whose sum is σ = 16866536832. Its totient is φ = 16163764372.

The previous prime is 16515150593. The next prime is 16515150611. The reversal of 16515150601 is 10605151561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10605151561 = 64489 ⋅164449.

It is a cyclic number.

It is not a de Polignac number, because 16515150601 - 2³ = 16515150593 is a prime.

It is a super-2 number, since 2×16515150601² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16515150611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175693045 + ... + 175693138.

It is an arithmetic number, because the mean of its divisors is an integer number (4216634208).

Almost surely, 2^16515150601 is an apocalyptic number.

It is an amenable number.

16515150601 is a deficient number, since it is larger than the sum of its proper divisors (351386231).

16515150601 is an equidigital number, since it uses as much as digits as its factorization.

16515150601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351386230.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 16515150601 in words is "sixteen billion, five hundred fifteen million, one hundred fifty thousand, six hundred one".