55287161499999 has 16 divisors (see below), whose sum is σ = 86603665567104. Its totient is φ = 30929880559200.

The previous prime is 55287161499917. The next prime is 55287161500007. The reversal of 55287161499999 is 99999416178255.

It is not a de Polignac number, because 55287161499999 - 2⁹ = 55287161499487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55287161499799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64437250737 + ... + 64437251594.

It is an arithmetic number, because the mean of its divisors is an integer number (5412729097944).

Almost surely, 2^{55287161499999} is an apocalyptic number.

55287161499999 is a deficient number, since it is larger than the sum of its proper divisors (31316504067105).

55287161499999 is a wasteful number, since it uses less digits than its factorization.

55287161499999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128874502358.

The product of its digits is 3968092800, while the sum is 84.

The spelling of 55287161499999 in words is "fifty-five trillion, two hundred eighty-seven billion, one hundred sixty-one million, four hundred ninety-nine thousand, nine hundred ninety-nine".