1000655161649 has 24 divisors (see below), whose sum is σ = 1187677199016. Its totient is φ = 837458899200.

The previous prime is 1000655161637. The next prime is 1000655161651. The reversal of 1000655161649 is 9461615560001.

1000655161649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 160646251249 + 840008910400 = 400807^2 + 916520^2 .

It is not a de Polignac number, because 1000655161649 - 2⁸ = 1000655161393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1000655161609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 266012 + ... + 1439469.

It is an arithmetic number, because the mean of its divisors is an integer number (49486549959).

Almost surely, 2^{1000655161649} is an apocalyptic number.

It is an amenable number.

1000655161649 is a deficient number, since it is larger than the sum of its proper divisors (187022037367).

1000655161649 is a wasteful number, since it uses less digits than its factorization.

1000655161649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705889 (or 1705878 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 1000655161649 in words is "one trillion, six hundred fifty-five million, one hundred sixty-one thousand, six hundred forty-nine".