55355500161387 has 16 divisors (see below), whose sum is σ = 82058990453280. Its totient is φ = 36880787844576.

The previous prime is 55355500161373. The next prime is 55355500161391. The reversal of 55355500161387 is 78316100555355.

55355500161387 is a `hidden beast` number, since 5 + 5 + 3 + 5 + 550 + 0 + 1 + 6 + 1 + 3 + 87 = 666.

It is not a de Polignac number, because 55355500161387 - 2⁴ = 55355500161371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55355500168387) 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, 635481468 + ... + 635568569.

It is an arithmetic number, because the mean of its divisors is an integer number (5128686903330).

Almost surely, 2^{55355500161387} is an apocalyptic number.

55355500161387 is a deficient number, since it is larger than the sum of its proper divisors (26703490291893).

55355500161387 is a wasteful number, since it uses less digits than its factorization.

55355500161387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271051659 (or 1271051653 counting only the distinct ones).

The product of its (nonzero) digits is 9450000, while the sum is 54.

The spelling of 55355500161387 in words is "fifty-five trillion, three hundred fifty-five billion, five hundred million, one hundred sixty-one thousand, three hundred eighty-seven".