55154445212163 has 16 divisors (see below), whose sum is σ = 80224783892352. Its totient is φ = 33426879696000.

The previous prime is 55154445212143. The next prime is 55154445212179. The reversal of 55154445212163 is 36121254445155.

It is not a de Polignac number, because 55154445212163 - 2⁹ = 55154445211651 is a prime.

It is a super-2 number, since 2×55154445212163² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55154445212143) 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, 26476248 + ... + 28483338.

It is an arithmetic number, because the mean of its divisors is an integer number (5014048993272).

Almost surely, 2^{55154445212163} is an apocalyptic number.

55154445212163 is a deficient number, since it is larger than the sum of its proper divisors (25070338680189).

55154445212163 is a wasteful number, since it uses less digits than its factorization.

55154445212163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839826.

The product of its digits is 2880000, while the sum is 48.

The spelling of 55154445212163 in words is "fifty-five trillion, one hundred fifty-four billion, four hundred forty-five million, two hundred twelve thousand, one hundred sixty-three".