55557616104 has 48 divisors (see below), whose sum is σ = 154535268420. Its totient is φ = 18018685440.

The previous prime is 55557616021. The next prime is 55557616109. The reversal of 55557616104 is 40161675555.

It is a happy number.

55557616104 is a `hidden beast` number, since 5 + 55 + 576 + 16 + 10 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 41819432004 + 13738184100 = 204498^2 + 117210^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55557616104.

It is not an unprimeable number, because it can be changed into a prime (55557616109) 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, 10424817 + ... + 10430144.

Almost surely, 2^55557616104 is an apocalyptic number.

It is an amenable number.

55557616104 is an abundant number, since it is smaller than the sum of its proper divisors (98977652316).

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

55557616104 is a wasteful number, since it uses less digits than its factorization.

55557616104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20855010 (or 20855003 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 45.

The spelling of 55557616104 in words is "fifty-five billion, five hundred fifty-seven million, six hundred sixteen thousand, one hundred four".