11667789454 has 8 divisors (see below), whose sum is σ = 17563528440. Its totient is φ = 5813279976.

The previous prime is 11667789449. The next prime is 11667789461. The reversal of 11667789454 is 45498776611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11667789454² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 10306669 + ... + 10307800.

It is an arithmetic number, because the mean of its divisors is an integer number (2195441055).

Almost surely, 2^11667789454 is an apocalyptic number.

11667789454 is a deficient number, since it is larger than the sum of its proper divisors (5895738986).

11667789454 is a wasteful number, since it uses less digits than its factorization.

11667789454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20614754.

The product of its digits is 10160640, while the sum is 58.

The spelling of 11667789454 in words is "eleven billion, six hundred sixty-seven million, seven hundred eighty-nine thousand, four hundred fifty-four".