1609111699416 has 160 divisors (see below), whose sum is σ = 4966572940560. Its totient is φ = 483596967168.

The previous prime is 1609111699399. The next prime is 1609111699427. The reversal of 1609111699416 is 6149961119061.

1609111699416 is a `hidden beast` number, since 1 + 60 + 9 + 1 + 1 + 169 + 9 + 416 = 666.

It is a super-2 number, since 2×1609111699416² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 1858875 + ... + 2583338.

Almost surely, 2^{1609111699416} is an apocalyptic number.

It is an amenable number.

1609111699416 is an abundant number, since it is smaller than the sum of its proper divisors (3357461241144).

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

1609111699416 is a wasteful number, since it uses less digits than its factorization.

1609111699416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4442287 (or 4442274 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 54.

The spelling of 1609111699416 in words is "one trillion, six hundred nine billion, one hundred eleven million, six hundred ninety-nine thousand, four hundred sixteen".