11612162016511 has 4 divisors (see below), whose sum is σ = 13271042304592. Its totient is φ = 9953281728432.

The previous prime is 11612162016467. The next prime is 11612162016541. The reversal of 11612162016511 is 11561026121611.

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

It is not a de Polignac number, because 11612162016511 - 2⁹ = 11612162015999 is a prime.

It is a super-2 number, since 2×11612162016511² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11612162016541) 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, 829440144030 + ... + 829440144043.

It is an arithmetic number, because the mean of its divisors is an integer number (3317760576148).

Almost surely, 2^{11612162016511} is an apocalyptic number.

11612162016511 is a deficient number, since it is larger than the sum of its proper divisors (1658880288081).

11612162016511 is an equidigital number, since it uses as much as digits as its factorization.

11612162016511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658880288080.

The product of its (nonzero) digits is 4320, while the sum is 34.

The spelling of 11612162016511 in words is "eleven trillion, six hundred twelve billion, one hundred sixty-two million, sixteen thousand, five hundred eleven".