2056216641731 has 8 divisors (see below), whose sum is σ = 2349999938304. Its totient is φ = 1762442860680.

The previous prime is 2056216641707. The next prime is 2056216641763. The reversal of 2056216641731 is 1371466126502.

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

It is a cyclic number.

It is not a de Polignac number, because 2056216641731 - 2¹⁸ = 2056216379587 is a prime.

It is a super-2 number, since 2×2056216641731² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2056216641931) 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, 1909655 + ... + 2785536.

It is an arithmetic number, because the mean of its divisors is an integer number (293749992288).

Almost surely, 2^{2056216641731} is an apocalyptic number.

2056216641731 is a deficient number, since it is larger than the sum of its proper divisors (293783296573).

2056216641731 is an equidigital number, since it uses as much as digits as its factorization.

2056216641731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4757761.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 2056216641731 in words is "two trillion, fifty-six billion, two hundred sixteen million, six hundred forty-one thousand, seven hundred thirty-one".