54311665203 has 12 divisors (see below), whose sum is σ = 78473777928. Its totient is φ = 36196886880.

The previous prime is 54311665151. The next prime is 54311665217. The reversal of 54311665203 is 30256611345.

54311665203 is a `hidden beast` number, since 5 + 431 + 16 + 6 + 5 + 203 = 666.

It is not a de Polignac number, because 54311665203 - 2⁶ = 54311665139 is a prime.

It is a super-2 number, since 2×54311665203² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54311665703) 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 11 ways as a sum of consecutive naturals, for example, 875850 + ... + 935807.

It is an arithmetic number, because the mean of its divisors is an integer number (6539481494).

Almost surely, 2^54311665203 is an apocalyptic number.

54311665203 is a deficient number, since it is larger than the sum of its proper divisors (24162112725).

54311665203 is a wasteful number, since it uses less digits than its factorization.

54311665203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814994 (or 1814991 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 54311665203 in words is "fifty-four billion, three hundred eleven million, six hundred sixty-five thousand, two hundred three".