1159471606421 has 2 divisors, whose sum is σ = 1159471606422. Its totient is φ = 1159471606420.

The previous prime is 1159471606339. The next prime is 1159471606487. The reversal of 1159471606421 is 1246061749511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1150715325796 + 8756280625 = 1072714^2 + 93575^2 .

It is an emirp because it is prime and its reverse (1246061749511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1159471606421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1159471606721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579735803210 + 579735803211.

It is an arithmetic number, because the mean of its divisors is an integer number (579735803211).

Almost surely, 2^{1159471606421} is an apocalyptic number.

It is an amenable number.

1159471606421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1159471606421 is an equidigital number, since it uses as much as digits as its factorization.

1159471606421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 1159471606421 in words is "one trillion, one hundred fifty-nine billion, four hundred seventy-one million, six hundred six thousand, four hundred twenty-one".