1609878126960 has 120 divisors (see below), whose sum is σ = 5406980136480. Its totient is φ = 429263294976.

The previous prime is 1609878126907. The next prime is 1609878127021. The reversal of 1609878126960 is 696218789061.

1609878126960 is a `hidden beast` number, since 1 + 609 + 8 + 7 + 8 + 12 + 6 + 9 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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, 8690181 + ... + 8873499.

It is an arithmetic number, because the mean of its divisors is an integer number (45058167804).

Almost surely, 2^{1609878126960} is an apocalyptic number.

1609878126960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1609878126960 is an abundant number, since it is smaller than the sum of its proper divisors (3797102009520).

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

1609878126960 is a wasteful number, since it uses less digits than its factorization.

1609878126960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195535 (or 195526 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 63.

The spelling of 1609878126960 in words is "one trillion, six hundred nine billion, eight hundred seventy-eight million, one hundred twenty-six thousand, nine hundred sixty".