2731566660245 has 8 divisors (see below), whose sum is σ = 3302901977760. Its totient is φ = 2168572004560.

The previous prime is 2731566660233. The next prime is 2731566660247. The reversal of 2731566660245 is 5420666651372.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2731566660245 - 2⁶ = 2731566660181 is a prime.

It is a super-2 number, since 2×2731566660245² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2731566660247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2085164735 + ... + 2085166044.

It is an arithmetic number, because the mean of its divisors is an integer number (412862747220).

Almost surely, 2^{2731566660245} is an apocalyptic number.

It is an amenable number.

2731566660245 is a deficient number, since it is larger than the sum of its proper divisors (571335317515).

2731566660245 is a wasteful number, since it uses less digits than its factorization.

2731566660245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170330915.

The product of its (nonzero) digits is 10886400, while the sum is 53.

The spelling of 2731566660245 in words is "two trillion, seven hundred thirty-one billion, five hundred sixty-six million, six hundred sixty thousand, two hundred forty-five".