54642165642 has 12 divisors (see below), whose sum is σ = 118391358930. Its totient is φ = 18214055208.

The previous prime is 54642165631. The next prime is 54642165647. The reversal of 54642165642 is 24656124645.

54642165642 is a `hidden beast` number, since 5 + 4 + 64 + 21 + 6 + 564 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 54619896681 + 22268961 = 233709^2 + 4719^2 .

It is not an unprimeable number, because it can be changed into a prime (54642165647) 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 5 ways as a sum of consecutive naturals, for example, 1517837917 + ... + 1517837952.

Almost surely, 2^54642165642 is an apocalyptic number.

54642165642 is an abundant number, since it is smaller than the sum of its proper divisors (63749193288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54642165642 is a wasteful number, since it uses less digits than its factorization.

54642165642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3035675877 (or 3035675874 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 45.

The spelling of 54642165642 in words is "fifty-four billion, six hundred forty-two million, one hundred sixty-five thousand, six hundred forty-two".