2656196064 has 168 divisors, whose sum is σ = 8095614912. Its totient is φ = 856604160.

The previous prime is 2656196051. The next prime is 2656196069. The reversal of 2656196064 is 4606916562.

2656196064 is a `hidden beast` number, since 26 + 5 + 6 + 19 + 606 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656196069) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 721332 + ... + 725004.

It is an arithmetic number, because the mean of its divisors is an integer number (48188184).

Almost surely, 2^2656196064 is an apocalyptic number.

2656196064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2656196064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4047807456).

2656196064 is an abundant number, since it is smaller than the sum of its proper divisors (5439418848).

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

2656196064 is an equidigital number, since it uses as much as digits as its factorization.

2656196064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3732 (or 3709 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 2656196064 is about 51538.2970615056. The cubic root of 2656196064 is about 1384.9051904151.

The spelling of 2656196064 in words is "two billion, six hundred fifty-six million, one hundred ninety-six thousand, sixty-four".