1201616960 has 28 divisors (see below), whose sum is σ = 2861351148. Its totient is φ = 480646656.

The previous prime is 1201616957. The next prime is 1201616987. The reversal of 1201616960 is 696161021.

It can be written as a sum of positive squares in 2 ways, for example, as 488940544 + 712676416 = 22112^2 + 26696^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 1877207 + ... + 1877846.

Almost surely, 2^1201616960 is an apocalyptic number.

1201616960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201616960 is an abundant number, since it is smaller than the sum of its proper divisors (1659734188).

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

1201616960 is an equidigital number, since it uses as much as digits as its factorization.

1201616960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755070 (or 3755060 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1201616960 is about 34664.3471018855. The cubic root of 1201616960 is about 1063.1356539615.

Adding to 1201616960 its reverse (696161021), we get a palindrome (1897777981).

The spelling of 1201616960 in words is "one billion, two hundred one million, six hundred sixteen thousand, nine hundred sixty".