11666237037 has 32 divisors (see below), whose sum is σ = 19762176000. Its totient is φ = 5955111360.

The previous prime is 11666236979. The next prime is 11666237041. The reversal of 11666237037 is 73073266611.

It is a happy number.

It is not a de Polignac number, because 11666237037 - 2⁷ = 11666236909 is a prime.

It is a super-2 number, since 2×11666237037² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11666237037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11666237837) 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, 680787 + ... + 697712.

It is an arithmetic number, because the mean of its divisors is an integer number (617568000).

Almost surely, 2^11666237037 is an apocalyptic number.

It is an amenable number.

11666237037 is a deficient number, since it is larger than the sum of its proper divisors (8095938963).

11666237037 is a wasteful number, since it uses less digits than its factorization.

11666237037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378553.

The product of its (nonzero) digits is 190512, while the sum is 42.

The spelling of 11666237037 in words is "eleven billion, six hundred sixty-six million, two hundred thirty-seven thousand, thirty-seven".