1611212196 has 96 divisors (see below), whose sum is σ = 4386130560. Its totient is φ = 454912000.

The previous prime is 1611212173. The next prime is 1611212203. The reversal of 1611212196 is 6912121161.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223090 + ... + 230198.

It is an arithmetic number, because the mean of its divisors is an integer number (45688860).

Almost surely, 2^1611212196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1611212196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2193065280).

1611212196 is an abundant number, since it is smaller than the sum of its proper divisors (2774918364).

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

1611212196 is a wasteful number, since it uses less digits than its factorization.

1611212196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7245 (or 7243 counting only the distinct ones).

The product of its digits is 1296, while the sum is 30.

The square root of 1611212196 is about 40139.9077726893. The cubic root of 1611212196 is about 1172.3327932769.

The spelling of 1611212196 in words is "one billion, six hundred eleven million, two hundred twelve thousand, one hundred ninety-six".