2081550565506 has 32 divisors (see below), whose sum is σ = 4175002500480. Its totient is φ = 691869026304.

The previous prime is 2081550565483. The next prime is 2081550565517. The reversal of 2081550565506 is 6055650551802.

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, 3180660 + ... + 3778848.

It is an arithmetic number, because the mean of its divisors is an integer number (130468828140).

Almost surely, 2^{2081550565506} is an apocalyptic number.

2081550565506 is an abundant number, since it is smaller than the sum of its proper divisors (2093451934974).

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

2081550565506 is a wasteful number, since it uses less digits than its factorization.

2081550565506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599850.

The product of its (nonzero) digits is 1800000, while the sum is 48.

The spelling of 2081550565506 in words is "two trillion, eighty-one billion, five hundred fifty million, five hundred sixty-five thousand, five hundred six".