1516423066 has 4 divisors (see below), whose sum is σ = 2274634602. Its totient is φ = 758211532.

The previous prime is 1516423061. The next prime is 1516423093. The reversal of 1516423066 is 6603246151.

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., 1511265625 + 5157441 = 38875^2 + 2271^2 .

It is not an unprimeable number, because it can be changed into a prime (1516423061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 379105765 + ... + 379105768.

Almost surely, 2^1516423066 is an apocalyptic number.

1516423066 is a deficient number, since it is larger than the sum of its proper divisors (758211536).

1516423066 is an equidigital number, since it uses as much as digits as its factorization.

1516423066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758211535.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 1516423066 is about 38941.2771490613. The cubic root of 1516423066 is about 1148.8768027709.

The spelling of 1516423066 in words is "one billion, five hundred sixteen million, four hundred twenty-three thousand, sixty-six".