1611461885 has 16 divisors (see below), whose sum is σ = 2111693760. Its totient is φ = 1170781440.

The previous prime is 1611461869. The next prime is 1611461897. The reversal of 1611461885 is 5881641161.

It is not a de Polignac number, because 1611461885 - 2⁴ = 1611461869 is a prime.

It is a Curzon number.

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, 41669 + ... + 70421.

It is an arithmetic number, because the mean of its divisors is an integer number (131980860).

Almost surely, 2^1611461885 is an apocalyptic number.

It is an amenable number.

1611461885 is a deficient number, since it is larger than the sum of its proper divisors (500231875).

1611461885 is a wasteful number, since it uses less digits than its factorization.

1611461885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29788.

The product of its digits is 46080, while the sum is 41.

The square root of 1611461885 is about 40143.0178860534. The cubic root of 1611461885 is about 1172.3933488189.

The spelling of 1611461885 in words is "one billion, six hundred eleven million, four hundred sixty-one thousand, eight hundred eighty-five".