2656342086 has 36 divisors (see below), whose sum is σ = 5428488492. Its totient is φ = 866552544.

The previous prime is 2656342081. The next prime is 2656342093. The reversal of 2656342086 is 6802436562.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656342081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6690840 + ... + 6691236.

It is an arithmetic number, because the mean of its divisors is an integer number (150791347).

Almost surely, 2^2656342086 is an apocalyptic number.

2656342086 is an abundant number, since it is smaller than the sum of its proper divisors (2772146406).

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

2656342086 is an frugal number, since it uses more digits than its factorization.

2656342086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The square root of 2656342086 is about 51539.7136779009. The cubic root of 2656342086 is about 1384.9305679243.

The spelling of 2656342086 in words is "two billion, six hundred fifty-six million, three hundred forty-two thousand, eighty-six".