11901668 has 6 divisors (see below), whose sum is σ = 20827926. Its totient is φ = 5950832.

The previous prime is 11901661. The next prime is 11901671. The reversal of 11901668 is 86610911.

It can be written as a sum of positive squares in only one way, i.e., 6666724 + 5234944 = 2582^2 + 2288^2 .

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (11901661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1487705 + ... + 1487712.

It is an arithmetic number, because the mean of its divisors is an integer number (3471321).

Almost surely, 2^11901668 is an apocalyptic number.

It is an amenable number.

11901668 is a deficient number, since it is larger than the sum of its proper divisors (8926258).

11901668 is a wasteful number, since it uses less digits than its factorization.

11901668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2975421 (or 2975419 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 11901668 is about 3449.8794181826. The cubic root of 11901668 is about 228.3157879261.

The spelling of 11901668 in words is "eleven million, nine hundred one thousand, six hundred sixty-eight".