1016011720 has 16 divisors (see below), whose sum is σ = 2286026460. Its totient is φ = 406404672.

The previous prime is 1016011709. The next prime is 1016011739. The reversal of 1016011720 is 271106101.

It can be written as a sum of positive squares in 2 ways, for example, as 920636964 + 95374756 = 30342^2 + 9766^2 .

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, 12700107 + ... + 12700186.

Almost surely, 2^1016011720 is an apocalyptic number.

1016011720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1016011720 is an abundant number, since it is smaller than the sum of its proper divisors (1270014740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1016011720 is a wasteful number, since it uses less digits than its factorization.

1016011720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25400304 (or 25400300 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 1016011720 is about 31874.9387450392. The cubic root of 1016011720 is about 1005.3090045912.

Adding to 1016011720 its reverse (271106101), we get a palindrome (1287117821).

The spelling of 1016011720 in words is "one billion, sixteen million, eleven thousand, seven hundred twenty".