1607978663316 has 120 divisors (see below), whose sum is σ = 4497353574560. Its totient is φ = 499458312000.

The previous prime is 1607978663309. The next prime is 1607978663323. The reversal of 1607978663316 is 6133668797061.

1607978663316 is a `hidden beast` number, since 1 + 607 + 9 + 7 + 8 + 6 + 6 + 3 + 3 + 16 = 666.

It is an interprime number because it is at equal distance from previous prime (1607978663309) and next prime (1607978663323).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1765510 + ... + 2516541.

Almost surely, 2^{1607978663316} is an apocalyptic number.

It is an amenable number.

1607978663316 is an abundant number, since it is smaller than the sum of its proper divisors (2889374911244).

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

1607978663316 is a wasteful number, since it uses less digits than its factorization.

1607978663316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4282147 (or 4282136 counting only the distinct ones).

The product of its (nonzero) digits is 41150592, while the sum is 63.

The spelling of 1607978663316 in words is "one trillion, six hundred seven billion, nine hundred seventy-eight million, six hundred sixty-three thousand, three hundred sixteen".