10216516091 has 4 divisors (see below), whose sum is σ = 10217515152. Its totient is φ = 10215517032.

The previous prime is 10216516069. The next prime is 10216516099. The reversal of 10216516091 is 19061561201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19061561201 = 31 ⋅614889071.

It is a cyclic number.

It is not a de Polignac number, because 10216516091 - 2¹⁸ = 10216253947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10216516099) 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, 484031 + ... + 504696.

It is an arithmetic number, because the mean of its divisors is an integer number (2554378788).

Almost surely, 2^10216516091 is an apocalyptic number.

10216516091 is a deficient number, since it is larger than the sum of its proper divisors (999061).

10216516091 is an equidigital number, since it uses as much as digits as its factorization.

10216516091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999060.

The product of its (nonzero) digits is 3240, while the sum is 32.

The spelling of 10216516091 in words is "ten billion, two hundred sixteen million, five hundred sixteen thousand, ninety-one".