1616166415 has 12 divisors (see below), whose sum is σ = 2027390904. Its totient is φ = 1236716624.

The previous prime is 1616166407. The next prime is 1616166443. The reversal of 1616166415 is 5146616161.

It is not a de Polignac number, because 1616166415 - 2³ = 1616166407 is a prime.

It is a super-2 number, since 2×1616166415² = 5223987761947904450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302869 + ... + 308158.

It is an arithmetic number, because the mean of its divisors is an integer number (168949242).

Almost surely, 2^1616166415 is an apocalyptic number.

1616166415 is a deficient number, since it is larger than the sum of its proper divisors (411224489).

1616166415 is an equidigital number, since it uses as much as digits as its factorization.

1616166415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611078 (or 611055 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 1616166415 is about 40201.5722951230. The cubic root of 1616166415 is about 1173.5331422396.

The spelling of 1616166415 in words is "one billion, six hundred sixteen million, one hundred sixty-six thousand, four hundred fifteen".