1066615652 has 12 divisors (see below), whose sum is σ = 1867180140. Its totient is φ = 533135616.

The previous prime is 1066615643. The next prime is 1066615657. The reversal of 1066615652 is 2565166601.

It can be written as a sum of positive squares in 2 ways, for example, as 909263716 + 157351936 = 30154^2 + 12544^2 .

It is a super-2 number, since 2×1066615652² = 2275337898182770208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066615657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28577 + ... + 54312.

It is an arithmetic number, because the mean of its divisors is an integer number (155598345).

Almost surely, 2^1066615652 is an apocalyptic number.

It is an amenable number.

1066615652 is a deficient number, since it is larger than the sum of its proper divisors (800564488).

1066615652 is a wasteful number, since it uses less digits than its factorization.

1066615652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86110 (or 86108 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 1066615652 is about 32659.0822283787. The cubic root of 1066615652 is about 1021.7296208399.

The spelling of 1066615652 in words is "one billion, sixty-six million, six hundred fifteen thousand, six hundred fifty-two".