2651556064 has 12 divisors (see below), whose sum is σ = 5220251064. Its totient is φ = 1325778016.

The previous prime is 2651556029. The next prime is 2651556071. The reversal of 2651556064 is 4606551562.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 41430532 + ... + 41430595.

It is an arithmetic number, because the mean of its divisors is an integer number (435020922).

Almost surely, 2^2651556064 is an apocalyptic number.

It is an amenable number.

2651556064 is a deficient number, since it is larger than the sum of its proper divisors (2568695000).

2651556064 is an equidigital number, since it uses as much as digits as its factorization.

2651556064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82861137 (or 82861129 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 40.

The square root of 2651556064 is about 51493.2623165400. The cubic root of 2651556064 is about 1384.0983090313.

The spelling of 2651556064 in words is "two billion, six hundred fifty-one million, five hundred fifty-six thousand, sixty-four".