55151612400127 has 4 divisors (see below), whose sum is σ = 55151670870576. Its totient is φ = 55151553929680.

The previous prime is 55151612400121. The next prime is 55151612400167. The reversal of 55151612400127 is 72100421615155.

It is a happy number.

55151612400127 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55151612400127 is a prime.

It is a super-2 number, since 2×55151612400127² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55151612400127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55151612400121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27796774 + ... + 29714707.

It is an arithmetic number, because the mean of its divisors is an integer number (13787917717644).

Almost surely, 2^{55151612400127} is an apocalyptic number.

55151612400127 is a deficient number, since it is larger than the sum of its proper divisors (58470449).

55151612400127 is an equidigital number, since it uses as much as digits as its factorization.

55151612400127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58470448.

The product of its (nonzero) digits is 84000, while the sum is 40.

The spelling of 55151612400127 in words is "fifty-five trillion, one hundred fifty-one billion, six hundred twelve million, four hundred thousand, one hundred twenty-seven".