55105370757640 has 64 divisors (see below), whose sum is σ = 141818901840000. Its totient is φ = 18877353036288.

The previous prime is 55105370757617. The next prime is 55105370757809. The reversal of 55105370757640 is 4675707350155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82567765 + ... + 83232484.

It is an arithmetic number, because the mean of its divisors is an integer number (2215920341250).

Almost surely, 2^{55105370757640} is an apocalyptic number.

It is an amenable number.

55105370757640 is an abundant number, since it is smaller than the sum of its proper divisors (86713531082360).

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

55105370757640 is a wasteful number, since it uses less digits than its factorization.

55105370757640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165801454 (or 165801450 counting only the distinct ones).

The product of its (nonzero) digits is 15435000, while the sum is 55.

The spelling of 55105370757640 in words is "fifty-five trillion, one hundred five billion, three hundred seventy million, seven hundred fifty-seven thousand, six hundred forty".