2056677657 has 8 divisors (see below), whose sum is σ = 2742648960. Its totient is φ = 1370912400.

The previous prime is 2056677643. The next prime is 2056677703. The reversal of 2056677657 is 7567766502.

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

It is not a de Polignac number, because 2056677657 - 2¹⁶ = 2056612121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2056677607) 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, 26482 + ... + 69387.

It is an arithmetic number, because the mean of its divisors is an integer number (342831120).

Almost surely, 2^2056677657 is an apocalyptic number.

It is an amenable number.

2056677657 is a deficient number, since it is larger than the sum of its proper divisors (685971303).

2056677657 is an equidigital number, since it uses as much as digits as its factorization.

2056677657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103023.

The product of its (nonzero) digits is 3704400, while the sum is 51.

The square root of 2056677657 is about 45350.6081216118. The cubic root of 2056677657 is about 1271.7119238802.

The spelling of 2056677657 in words is "two billion, fifty-six million, six hundred seventy-seven thousand, six hundred fifty-seven".