1611061312 has 56 divisors (see below), whose sum is σ = 3812535936. Its totient is φ = 660430848.

The previous prime is 1611061279. The next prime is 1611061337. The reversal of 1611061312 is 2131601161.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×1611061312² = 5191037102046322688, which contains 22 as substring.

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, 67873 + ... + 88480.

Almost surely, 2^1611061312 is an apocalyptic number.

It is an amenable number.

1611061312 is an abundant number, since it is smaller than the sum of its proper divisors (2201474624).

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

1611061312 is a wasteful number, since it uses less digits than its factorization.

1611061312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156395 (or 156385 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1611061312 is about 40138.0282525188. The cubic root of 1611061312 is about 1172.2961972731.

Adding to 1611061312 its reverse (2131601161), we get a palindrome (3742662473).

The spelling of 1611061312 in words is "one billion, six hundred eleven million, sixty-one thousand, three hundred twelve".