2155344927968 has 12 divisors (see below), whose sum is σ = 4243335327000. Its totient is φ = 1077672463968.

The previous prime is 2155344927947. The next prime is 2155344927973. The reversal of 2155344927968 is 8697294435512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33677264468 + ... + 33677264531.

It is an arithmetic number, because the mean of its divisors is an integer number (353611277250).

Almost surely, 2^{2155344927968} is an apocalyptic number.

It is an amenable number.

2155344927968 is a deficient number, since it is larger than the sum of its proper divisors (2087990399032).

2155344927968 is an equidigital number, since it uses as much as digits as its factorization.

2155344927968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67354529009 (or 67354529001 counting only the distinct ones).

The product of its digits is 130636800, while the sum is 65.

The spelling of 2155344927968 in words is "two trillion, one hundred fifty-five billion, three hundred forty-four million, nine hundred twenty-seven thousand, nine hundred sixty-eight".