11666706357 has 32 divisors (see below), whose sum is σ = 15858009216. Its totient is φ = 7628544000.

The previous prime is 11666706353. The next prime is 11666706361. The reversal of 11666706357 is 75360766611.

It is an interprime number because it is at equal distance from previous prime (11666706353) and next prime (11666706361).

It is not a de Polignac number, because 11666706357 - 2² = 11666706353 is a prime.

It is a super-2 number, since 2×11666706357² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11666706353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19411857 + ... + 19412457.

It is an arithmetic number, because the mean of its divisors is an integer number (495562788).

Almost surely, 2^11666706357 is an apocalyptic number.

It is an amenable number.

11666706357 is a deficient number, since it is larger than the sum of its proper divisors (4191302859).

11666706357 is a wasteful number, since it uses less digits than its factorization.

11666706357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221.

The product of its (nonzero) digits is 952560, while the sum is 48.

The spelling of 11666706357 in words is "eleven billion, six hundred sixty-six million, seven hundred six thousand, three hundred fifty-seven".