1966020002 has 4 divisors (see below), whose sum is σ = 2949030006. Its totient is φ = 983010000.

The previous prime is 1966019989. The next prime is 1966020073. The reversal of 1966020002 is 2000206691.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1910651521 + 55368481 = 43711^2 + 7441^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491504999 + ... + 491505002.

Almost surely, 2^1966020002 is an apocalyptic number.

1966020002 is a deficient number, since it is larger than the sum of its proper divisors (983010004).

1966020002 is an equidigital number, since it uses as much as digits as its factorization.

1966020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983010003.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1966020002 is about 44339.8241088076. The cubic root of 1966020002 is about 1252.7449017594.

Adding to 1966020002 its reverse (2000206691), we get a palindrome (3966226693).

The spelling of 1966020002 in words is "one billion, nine hundred sixty-six million, twenty thousand, two".