1156380898202 has 4 divisors (see below), whose sum is σ = 1734571347306. Its totient is φ = 578190449100.

The previous prime is 1156380898201. The next prime is 1156380898217. The reversal of 1156380898202 is 2028980836511.

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., 1083220926841 + 73159971361 = 1040779^2 + 270481^2 .

It is not an unprimeable number, because it can be changed into a prime (1156380898201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289095224549 + ... + 289095224552.

Almost surely, 2^{1156380898202} is an apocalyptic number.

1156380898202 is a deficient number, since it is larger than the sum of its proper divisors (578190449104).

1156380898202 is an equidigital number, since it uses as much as digits as its factorization.

1156380898202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578190449103.

The product of its (nonzero) digits is 1658880, while the sum is 53.

The spelling of 1156380898202 in words is "one trillion, one hundred fifty-six billion, three hundred eighty million, eight hundred ninety-eight thousand, two hundred two".