11667217652 has 6 divisors (see below), whose sum is σ = 20417630898. Its totient is φ = 5833608824.

The previous prime is 11667217633. The next prime is 11667217669. The reversal of 11667217652 is 25671276611.

It can be written as a sum of positive squares in only one way, i.e., 11252117776 + 415099876 = 106076^2 + 20374^2 .

It is a super-2 number, since 2×11667217652² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1458402203 + ... + 1458402210.

It is an arithmetic number, because the mean of its divisors is an integer number (3402938483).

Almost surely, 2^11667217652 is an apocalyptic number.

It is an amenable number.

11667217652 is a deficient number, since it is larger than the sum of its proper divisors (8750413246).

11667217652 is a wasteful number, since it uses less digits than its factorization.

11667217652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916804417 (or 2916804415 counting only the distinct ones).

The product of its digits is 211680, while the sum is 44.

The spelling of 11667217652 in words is "eleven billion, six hundred sixty-seven million, two hundred seventeen thousand, six hundred fifty-two".