16116506511 has 64 divisors (see below), whose sum is σ = 25514311680. Its totient is φ = 8858626560.

The previous prime is 16116506507. The next prime is 16116506543. The reversal of 16116506511 is 11560561161.

It is not a de Polignac number, because 16116506511 - 2² = 16116506507 is a prime.

It is a super-3 number, since 3×16116506511³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16116506551) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22414810 + ... + 22415528.

It is an arithmetic number, because the mean of its divisors is an integer number (398661120).

Almost surely, 2^16116506511 is an apocalyptic number.

16116506511 is a deficient number, since it is larger than the sum of its proper divisors (9397805169).

16116506511 is a wasteful number, since it uses less digits than its factorization.

16116506511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116.

The product of its (nonzero) digits is 5400, while the sum is 33.

It can be divided in two parts, 1611650 and 6511, that added together give a palindrome (1618161).

The spelling of 16116506511 in words is "sixteen billion, one hundred sixteen million, five hundred six thousand, five hundred eleven".