12241237471661 has 16 divisors (see below), whose sum is σ = 13591071744000. Its totient is φ = 10932318025200.

The previous prime is 12241237471649. The next prime is 12241237471717. The reversal of 12241237471661 is 16617473214221.

It is not a de Polignac number, because 12241237471661 - 2¹⁸ = 12241237209517 is a prime.

It is a super-3 number, since 3×12241237471661³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12241237471601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35220485 + ... + 35566346.

It is an arithmetic number, because the mean of its divisors is an integer number (849441984000).

Almost surely, 2^{12241237471661} is an apocalyptic number.

12241237471661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12241237471661 is a deficient number, since it is larger than the sum of its proper divisors (1349834272339).

12241237471661 is a wasteful number, since it uses less digits than its factorization.

12241237471661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70787120.

The product of its digits is 677376, while the sum is 47.

The spelling of 12241237471661 in words is "twelve trillion, two hundred forty-one billion, two hundred thirty-seven million, four hundred seventy-one thousand, six hundred sixty-one".