2112040001660 has 24 divisors (see below), whose sum is σ = 4457571871200. Its totient is φ = 840570692544.

The previous prime is 2112040001629. The next prime is 2112040001677. The reversal of 2112040001660 is 661000402112.

It is a super-2 number, since 2×2112040001660² (a number of 25 digits) contains 22 as substring.

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, 265327679 + ... + 265335638.

It is an arithmetic number, because the mean of its divisors is an integer number (185732161300).

Almost surely, 2^{2112040001660} is an apocalyptic number.

2112040001660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112040001660 is an abundant number, since it is smaller than the sum of its proper divisors (2345531869540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2112040001660 is a wasteful number, since it uses less digits than its factorization.

2112040001660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530663525 (or 530663523 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 2112040001660 its reverse (661000402112), we get a palindrome (2773040403772).

The spelling of 2112040001660 in words is "two trillion, one hundred twelve billion, forty million, one thousand, six hundred sixty".