1616157118 has 4 divisors (see below), whose sum is σ = 2424235680. Its totient is φ = 808078558.

The previous prime is 1616157089. The next prime is 1616157121. The reversal of 1616157118 is 8117516161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8117516161 = 2473 ⋅3282457.

It is a super-2 number, since 2×1616157118² = 5223927660124131848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404039278 + ... + 404039281.

It is an arithmetic number, because the mean of its divisors is an integer number (606058920).

Almost surely, 2^1616157118 is an apocalyptic number.

1616157118 is a deficient number, since it is larger than the sum of its proper divisors (808078562).

1616157118 is an equidigital number, since it uses as much as digits as its factorization.

1616157118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808078561.

The product of its digits is 10080, while the sum is 37.

The square root of 1616157118 is about 40201.4566651508. The cubic root of 1616157118 is about 1173.5308919848.

The spelling of 1616157118 in words is "one billion, six hundred sixteen million, one hundred fifty-seven thousand, one hundred eighteen".