55120040150205 has 16 divisors (see below), whose sum is σ = 89001165749760. Its totient is φ = 29127654243648.

The previous prime is 55120040150177. The next prime is 55120040150209. The reversal of 55120040150205 is 50205104002155.

It is not a de Polignac number, because 55120040150205 - 2²⁰ = 55120039101629 is a prime.

It is a super-2 number, since 2×55120040150205² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55120040150209) 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, 16856279757 + ... + 16856283026.

It is an arithmetic number, because the mean of its divisors is an integer number (5562572859360).

Almost surely, 2^{55120040150205} is an apocalyptic number.

It is an amenable number.

55120040150205 is a deficient number, since it is larger than the sum of its proper divisors (33881125599555).

55120040150205 is a wasteful number, since it uses less digits than its factorization.

55120040150205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33712562900.

The product of its (nonzero) digits is 10000, while the sum is 30.

The spelling of 55120040150205 in words is "fifty-five trillion, one hundred twenty billion, forty million, one hundred fifty thousand, two hundred five".