1550655505656 has 24 divisors (see below), whose sum is σ = 4199691994680. Its totient is φ = 516885168528.

The previous prime is 1550655505649. The next prime is 1550655505667. The reversal of 1550655505656 is 6565055560551.

1550655505656 is a `hidden beast` number, since 15 + 5 + 0 + 65 + 5 + 5 + 0 + 565 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 10768440940 + ... + 10768441083.

It is an arithmetic number, because the mean of its divisors is an integer number (174987166445).

Almost surely, 2^{1550655505656} is an apocalyptic number.

It is an amenable number.

1550655505656 is an abundant number, since it is smaller than the sum of its proper divisors (2649036489024).

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

1550655505656 is a wasteful number, since it uses less digits than its factorization.

1550655505656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21536882035 (or 21536882028 counting only the distinct ones).

The product of its (nonzero) digits is 16875000, while the sum is 54.

The spelling of 1550655505656 in words is "one trillion, five hundred fifty billion, six hundred fifty-five million, five hundred five thousand, six hundred fifty-six".