11668420461 has 16 divisors (see below), whose sum is σ = 16083587520. Its totient is φ = 7519582080.

The previous prime is 11668420459. The next prime is 11668420487. The reversal of 11668420461 is 16402486611.

It is not a de Polignac number, because 11668420461 - 2¹ = 11668420459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11668420451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421755 + ... + 448568.

It is an arithmetic number, because the mean of its divisors is an integer number (1005224220).

Almost surely, 2^11668420461 is an apocalyptic number.

It is an amenable number.

11668420461 is a deficient number, since it is larger than the sum of its proper divisors (4415167059).

11668420461 is a wasteful number, since it uses less digits than its factorization.

11668420461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870476.

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 11668420461 in words is "eleven billion, six hundred sixty-eight million, four hundred twenty thousand, four hundred sixty-one".