1066611516 has 24 divisors (see below), whose sum is σ = 2490340944. Its totient is φ = 355311360.

The previous prime is 1066611449. The next prime is 1066611571. The reversal of 1066611516 is 6151166601.

It is a super-2 number, since 2×1066611516² = 2275320252127636512, which contains 22 as substring.

It is a congruent number.

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, 7965 + ... + 46868.

It is an arithmetic number, because the mean of its divisors is an integer number (103764206).

Almost surely, 2^1066611516 is an apocalyptic number.

It is an amenable number.

1066611516 is an abundant number, since it is smaller than the sum of its proper divisors (1423729428).

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

1066611516 is a wasteful number, since it uses less digits than its factorization.

1066611516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56461 (or 56459 counting only the distinct ones).

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

The square root of 1066611516 is about 32659.0189074932. The cubic root of 1066611516 is about 1021.7283001895.

The spelling of 1066611516 in words is "one billion, sixty-six million, six hundred eleven thousand, five hundred sixteen".