55140543145 has 16 divisors (see below), whose sum is σ = 66799676160. Its totient is φ = 43693228800.

The previous prime is 55140543121. The next prime is 55140543149. The reversal of 55140543145 is 54134504155.

It is a de Polignac number, because none of the positive numbers 2^k-55140543145 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55140543149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207505 + ... + 391585.

It is an arithmetic number, because the mean of its divisors is an integer number (4174979760).

Almost surely, 2^55140543145 is an apocalyptic number.

It is an amenable number.

55140543145 is a deficient number, since it is larger than the sum of its proper divisors (11659133015).

55140543145 is a wasteful number, since it uses less digits than its factorization.

55140543145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184656.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 55140543145 in words is "fifty-five billion, one hundred forty million, five hundred forty-three thousand, one hundred forty-five".