1611958104 has 32 divisors (see below), whose sum is σ = 4477662000. Its totient is φ = 537319296.

The previous prime is 1611958097. The next prime is 1611958109. The reversal of 1611958104 is 4018591161.

It is a happy number.

1611958104 is a `hidden beast` number, since 1 + 61 + 19 + 581 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1611958109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3731169 + ... + 3731600.

Almost surely, 2^1611958104 is an apocalyptic number.

It is an amenable number.

1611958104 is an abundant number, since it is smaller than the sum of its proper divisors (2865703896).

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

1611958104 is a wasteful number, since it uses less digits than its factorization.

1611958104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7462784 (or 7462774 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The square root of 1611958104 is about 40149.1980492762. The cubic root of 1611958104 is about 1172.5136752042.

The spelling of 1611958104 in words is "one billion, six hundred eleven million, nine hundred fifty-eight thousand, one hundred four".