1125662066 has 4 divisors (see below), whose sum is σ = 1688493102. Its totient is φ = 562831032.

The previous prime is 1125662051. The next prime is 1125662081. The reversal of 1125662066 is 6602665211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6602665211 = 8161 ⋅809051.

It is an interprime number because it is at equal distance from previous prime (1125662051) and next prime (1125662081).

It can be written as a sum of positive squares in only one way, i.e., 1026241225 + 99420841 = 32035^2 + 9971^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281415515 + ... + 281415518.

Almost surely, 2^1125662066 is an apocalyptic number.

1125662066 is a deficient number, since it is larger than the sum of its proper divisors (562831036).

1125662066 is an equidigital number, since it uses as much as digits as its factorization.

1125662066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562831035.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1125662066 is about 33550.8877080771. The cubic root of 1125662066 is about 1040.2458941499.

The spelling of 1125662066 in words is "one billion, one hundred twenty-five million, six hundred sixty-two thousand, sixty-six".