1201016736 has 72 divisors (see below), whose sum is σ = 3419603460. Its totient is φ = 399845376.

The previous prime is 1201016717. The next prime is 1201016743. The reversal of 1201016736 is 6376101021.

It can be written as a sum of positive squares in 2 ways, for example, as 1200206736 + 810000 = 34644^2 + 900^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288526 + ... + 292658.

Almost surely, 2^1201016736 is an apocalyptic number.

1201016736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1201016736 is an abundant number, since it is smaller than the sum of its proper divisors (2218586724).

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

1201016736 is a wasteful number, since it uses less digits than its factorization.

1201016736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5158 (or 5147 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 1201016736 is about 34655.6883642498. The cubic root of 1201016736 is about 1062.9586075772.

Adding to 1201016736 its reverse (6376101021), we get a palindrome (7577117757).

The spelling of 1201016736 in words is "one billion, two hundred one million, sixteen thousand, seven hundred thirty-six".