11672455511 has 4 divisors (see below), whose sum is σ = 11870293800. Its totient is φ = 11474617224.

The previous prime is 11672455507. The next prime is 11672455537. The reversal of 11672455511 is 11555427611.

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

It is a cyclic number.

It is not a de Polignac number, because 11672455511 - 2² = 11672455507 is a prime.

It is a super-2 number, since 2×11672455511² (a number of 21 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 (11672454511) 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, 98919056 + ... + 98919173.

It is an arithmetic number, because the mean of its divisors is an integer number (2967573450).

Almost surely, 2^11672455511 is an apocalyptic number.

11672455511 is a deficient number, since it is larger than the sum of its proper divisors (197838289).

11672455511 is an equidigital number, since it uses as much as digits as its factorization.

11672455511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197838288.

The product of its digits is 42000, while the sum is 38.

The spelling of 11672455511 in words is "eleven billion, six hundred seventy-two million, four hundred fifty-five thousand, five hundred eleven".