1203720568164 has 27 divisors (see below), whose sum is σ = 3042754742937. Its totient is φ = 401237995104.

The previous prime is 1203720568153. The next prime is 1203720568177. The reversal of 1203720568164 is 4618650273021.

The square root of 1203720568164 is 1097142.

It is a perfect power (a square), and thus also a powerful number.

1203720568164 is a `hidden beast` number, since 1 + 2 + 0 + 3 + 7 + 20 + 568 + 1 + 64 = 666.

It can be written as a sum of positive squares in only one way, i.e., 959479020900 + 244241547264 = 979530^2 + 494208^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6491424 + ... + 6674280.

Almost surely, 2^{1203720568164} is an apocalyptic number.

1203720568164 is the 1097142-nd square number.

It is an amenable number.

1203720568164 is an abundant number, since it is smaller than the sum of its proper divisors (1839034174773).

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

1203720568164 is an frugal number, since it uses more digits than its factorization.

1203720568164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365724 (or 182862 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 1203720568164 in words is "one trillion, two hundred three billion, seven hundred twenty million, five hundred sixty-eight thousand, one hundred sixty-four".