55557204742140 has 48 divisors (see below), whose sum is σ = 155643494520192. Its totient is φ = 14807319241536.

The previous prime is 55557204742021. The next prime is 55557204742157. The reversal of 55557204742140 is 4124740275555.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247866934 + ... + 248090973.

It is an arithmetic number, because the mean of its divisors is an integer number (3242572802504).

Almost surely, 2^{55557204742140} is an apocalyptic number.

It is an amenable number.

55557204742140 is an abundant number, since it is smaller than the sum of its proper divisors (100086289778052).

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

55557204742140 is a wasteful number, since it uses less digits than its factorization.

55557204742140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495959786 (or 495959784 counting only the distinct ones).

The product of its (nonzero) digits is 7840000, while the sum is 51.

The spelling of 55557204742140 in words is "fifty-five trillion, five hundred fifty-seven billion, two hundred four million, seven hundred forty-two thousand, one hundred forty".