11216516051 has 4 divisors (see below), whose sum is σ = 12079324992. Its totient is φ = 10353707112.

The previous prime is 11216516041. The next prime is 11216516057. The reversal of 11216516051 is 15061561211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11216516051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11216516057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431404451 + ... + 431404476.

It is an arithmetic number, because the mean of its divisors is an integer number (3019831248).

Almost surely, 2^11216516051 is an apocalyptic number.

11216516051 is a deficient number, since it is larger than the sum of its proper divisors (862808941).

11216516051 is an equidigital number, since it uses as much as digits as its factorization.

11216516051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862808940.

The product of its (nonzero) digits is 1800, while the sum is 29.

The spelling of 11216516051 in words is "eleven billion, two hundred sixteen million, five hundred sixteen thousand, fifty-one".