6161556056550 has 48 divisors (see below), whose sum is σ = 15280989044880. Its totient is φ = 1643046128640.

The previous prime is 6161556056483. The next prime is 6161556056561. The reversal of 6161556056550 is 556506551616.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6161556056493 and 6161556056502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6932274 + ... + 7770426.

It is an arithmetic number, because the mean of its divisors is an integer number (318353938435).

Almost surely, 2^{6161556056550} is an apocalyptic number.

6161556056550 is an abundant number, since it is smaller than the sum of its proper divisors (9119432988330).

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

6161556056550 is a wasteful number, since it uses less digits than its factorization.

6161556056550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887177 (or 887172 counting only the distinct ones).

The product of its (nonzero) digits is 4050000, while the sum is 51.

The spelling of 6161556056550 in words is "six trillion, one hundred sixty-one billion, five hundred fifty-six million, fifty-six thousand, five hundred fifty".