111666073001 has 24 divisors (see below), whose sum is σ = 134426673216. Its totient is φ = 92415828960.

The previous prime is 111666072949. The next prime is 111666073007. The reversal of 111666073001 is 100370666111.

It is not a de Polignac number, because 111666073001 - 2¹⁴ = 111666056617 is a prime.

It is a super-2 number, since 2×111666073001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111666073007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2420 + ... + 472586.

It is an arithmetic number, because the mean of its divisors is an integer number (5601111384).

Almost surely, 2^111666073001 is an apocalyptic number.

It is an amenable number.

111666073001 is a deficient number, since it is larger than the sum of its proper divisors (22760600215).

111666073001 is a wasteful number, since it uses less digits than its factorization.

111666073001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470349 (or 470342 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The spelling of 111666073001 in words is "one hundred eleven billion, six hundred sixty-six million, seventy-three thousand, one".