51441451155 has 24 divisors (see below), whose sum is σ = 94410194112. Its totient is φ = 25821590784.

The previous prime is 51441451129. The next prime is 51441451231. The reversal of 51441451155 is 55115414415.

51441451155 is a `hidden beast` number, since 5 + 14 + 41 + 451 + 155 = 666.

It is not a de Polignac number, because 51441451155 - 2⁶ = 51441451091 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33621099 + ... + 33622628.

It is an arithmetic number, because the mean of its divisors is an integer number (3933758088).

Almost surely, 2^51441451155 is an apocalyptic number.

51441451155 is a deficient number, since it is larger than the sum of its proper divisors (42968742957).

51441451155 is a wasteful number, since it uses less digits than its factorization.

51441451155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67243755 (or 67243752 counting only the distinct ones).

The product of its digits is 40000, while the sum is 36.

The spelling of 51441451155 in words is "fifty-one billion, four hundred forty-one million, four hundred fifty-one thousand, one hundred fifty-five".