11666237038 has 16 divisors (see below), whose sum is σ = 17563500000. Its totient is φ = 5811766272.

The previous prime is 11666236979. The next prime is 11666237041. The reversal of 11666237038 is 83073266611.

It is a super-2 number, since 2×11666237038² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11666236985 and 11666237003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890278 + ... + 903286.

It is an arithmetic number, because the mean of its divisors is an integer number (1097718750).

Almost surely, 2^11666237038 is an apocalyptic number.

11666237038 is a deficient number, since it is larger than the sum of its proper divisors (5897262962).

11666237038 is a wasteful number, since it uses less digits than its factorization.

11666237038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14619.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 11666237038 in words is "eleven billion, six hundred sixty-six million, two hundred thirty-seven thousand, thirty-eight".