1611516066 has 16 divisors (see below), whose sum is σ = 3233534304. Its totient is φ = 535421664.

The previous prime is 1611516043. The next prime is 1611516079. The reversal of 1611516066 is 6606151161.

It is a super-2 number, since 2×1611516066² = 5193968061952232712, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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, 435595 + ... + 439278.

It is an arithmetic number, because the mean of its divisors is an integer number (202095894).

Almost surely, 2^1611516066 is an apocalyptic number.

1611516066 is an abundant number, since it is smaller than the sum of its proper divisors (1622018238).

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

1611516066 is a wasteful number, since it uses less digits than its factorization.

1611516066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875185.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 1611516066 is about 40143.6927299918. The cubic root of 1611516066 is about 1172.4064881786.

The spelling of 1611516066 in words is "one billion, six hundred eleven million, five hundred sixteen thousand, sixty-six".