1156380698201 has 2 divisors, whose sum is σ = 1156380698202. Its totient is φ = 1156380698200.

The previous prime is 1156380698197. The next prime is 1156380698219. The reversal of 1156380698201 is 1028960836511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 718502046025 + 437878652176 = 847645^2 + 661724^2 .

It is a cyclic number.

It is not a de Polignac number, because 1156380698201 - 2² = 1156380698197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1156380698201.

It is not a weakly prime, because it can be changed into another prime (1156380698281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578190349100 + 578190349101.

It is an arithmetic number, because the mean of its divisors is an integer number (578190349101).

Almost surely, 2^{1156380698201} is an apocalyptic number.

It is an amenable number.

1156380698201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156380698201 is an equidigital number, since it uses as much as digits as its factorization.

1156380698201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 50.

It can be divided in two parts, 1156380 and 698201, that added together give a palindrome (1854581).

The spelling of 1156380698201 in words is "one trillion, one hundred fifty-six billion, three hundred eighty million, six hundred ninety-eight thousand, two hundred one".