1021340066 has 8 divisors (see below), whose sum is σ = 1550468304. Its totient is φ = 504517300.

The previous prime is 1021340057. The next prime is 1021340071. The reversal of 1021340066 is 6600431201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3076160 + ... + 3076491.

It is an arithmetic number, because the mean of its divisors is an integer number (193808538).

Almost surely, 2^1021340066 is an apocalyptic number.

1021340066 is a deficient number, since it is larger than the sum of its proper divisors (529128238).

1021340066 is an equidigital number, since it uses as much as digits as its factorization.

1021340066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6152736.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1021340066 is about 31958.4115062060. The cubic root of 1021340066 is about 1007.0633469970.

Adding to 1021340066 its reverse (6600431201), we get a palindrome (7621771267).

The spelling of 1021340066 in words is "one billion, twenty-one million, three hundred forty thousand, sixty-six".