55463605668 has 36 divisors (see below), whose sum is σ = 146295309888. Its totient is φ = 17684047920.

The previous prime is 55463605661. The next prime is 55463605723. The reversal of 55463605668 is 86650636455.

55463605668 is a `hidden beast` number, since 5 + 5 + 46 + 36 + 0 + 566 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (55463605661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33491688 + ... + 33493343.

It is an arithmetic number, because the mean of its divisors is an integer number (4063758608).

Almost surely, 2^55463605668 is an apocalyptic number.

It is an amenable number.

55463605668 is an abundant number, since it is smaller than the sum of its proper divisors (90831704220).

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

55463605668 is a wasteful number, since it uses less digits than its factorization.

55463605668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66985064 (or 66985059 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 54.

The spelling of 55463605668 in words is "fifty-five billion, four hundred sixty-three million, six hundred five thousand, six hundred sixty-eight".