2656651424 has 72 divisors (see below), whose sum is σ = 6152891220. Its totient is φ = 1125712896.

The previous prime is 2656651397. The next prime is 2656651427. The reversal of 2656651424 is 4241566562.

It can be written as a sum of positive squares in 2 ways, for example, as 1994515600 + 662135824 = 44660^2 + 25732^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656651427) 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 11 ways as a sum of consecutive naturals, for example, 130034 + ... + 149070.

Almost surely, 2^2656651424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2656651424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3076445610).

2656651424 is an abundant number, since it is smaller than the sum of its proper divisors (3496239796).

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

2656651424 is a wasteful number, since it uses less digits than its factorization.

2656651424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19150 (or 19135 counting only the distinct ones).

The product of its digits is 345600, while the sum is 41.

The square root of 2656651424 is about 51542.7145579276. The cubic root of 2656651424 is about 1384.9843254361.

The spelling of 2656651424 in words is "two billion, six hundred fifty-six million, six hundred fifty-one thousand, four hundred twenty-four".