1611198085 has 16 divisors (see below), whose sum is σ = 2213753472. Its totient is φ = 1102766400.

The previous prime is 1611198053. The next prime is 1611198097. The reversal of 1611198085 is 5808911161.

It is not a de Polignac number, because 1611198085 - 2⁵ = 1611198053 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23611 + ... + 61480.

It is an arithmetic number, because the mean of its divisors is an integer number (138359592).

Almost surely, 2^1611198085 is an apocalyptic number.

It is an amenable number.

1611198085 is a deficient number, since it is larger than the sum of its proper divisors (602555387).

1611198085 is an equidigital number, since it uses as much as digits as its factorization.

1611198085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85644.

The product of its (nonzero) digits is 17280, while the sum is 40.

The square root of 1611198085 is about 40139.7319996036. The cubic root of 1611198085 is about 1172.3293708358.

The spelling of 1611198085 in words is "one billion, six hundred eleven million, one hundred ninety-eight thousand, eighty-five".