1616825855 has 8 divisors (see below), whose sum is σ = 1940788464. Its totient is φ = 1293062400.

The previous prime is 1616825831. The next prime is 1616825869. The reversal of 1616825855 is 5585286161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1616825855 - 2⁸ = 1616825599 is a prime.

It is a super-2 number, since 2×1616825855² = 5228251690792962050, 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 7 ways as a sum of consecutive naturals, for example, 31301 + ... + 64910.

It is an arithmetic number, because the mean of its divisors is an integer number (242598558).

Almost surely, 2^1616825855 is an apocalyptic number.

1616825855 is a deficient number, since it is larger than the sum of its proper divisors (323962609).

1616825855 is an equidigital number, since it uses as much as digits as its factorization.

1616825855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99577.

The product of its digits is 576000, while the sum is 47.

The square root of 1616825855 is about 40209.7731279350. The cubic root of 1616825855 is about 1173.6927317179.

The spelling of 1616825855 in words is "one billion, six hundred sixteen million, eight hundred twenty-five thousand, eight hundred fifty-five".