1611612066 has 16 divisors (see below), whose sum is σ = 3327199488. Its totient is φ = 519874800.

The previous prime is 1611612061. The next prime is 1611612077. The reversal of 1611612066 is 6602161161.

It is not an unprimeable number, because it can be changed into a prime (1611612061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4332105 + ... + 4332476.

It is an arithmetic number, because the mean of its divisors is an integer number (207949968).

Almost surely, 2^1611612066 is an apocalyptic number.

1611612066 is an abundant number, since it is smaller than the sum of its proper divisors (1715587422).

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

1611612066 is a wasteful number, since it uses less digits than its factorization.

1611612066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8664617.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 1611612066 is about 40144.8884168333. Note that the first 3 decimals coincide. The cubic root of 1611612066 is about 1172.4297682832.

It can be divided in two parts, 16116 and 12066, that added together give a palindrome (28182).

The spelling of 1611612066 in words is "one billion, six hundred eleven million, six hundred twelve thousand, sixty-six".