1610611660656 has 100 divisors (see below), whose sum is σ = 4675411263952. Its totient is φ = 535277320704.

The previous prime is 1610611660639. The next prime is 1610611660747. The reversal of 1610611660656 is 6560661160161.

1610611660656 is a `hidden beast` number, since 16 + 10 + 6 + 1 + 16 + 606 + 5 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1407100 + ... + 2280603.

Almost surely, 2^{1610611660656} is an apocalyptic number.

1610611660656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1610611660656 is an abundant number, since it is smaller than the sum of its proper divisors (3064799603296).

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

1610611660656 is a wasteful number, since it uses less digits than its factorization.

1610611660656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688060 (or 3688045 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 1610611660656 in words is "one trillion, six hundred ten billion, six hundred eleven million, six hundred sixty thousand, six hundred fifty-six".