1015660602449 has 2 divisors, whose sum is σ = 1015660602450. Its totient is φ = 1015660602448.

The previous prime is 1015660602433. The next prime is 1015660602479. The reversal of 1015660602449 is 9442060665101.

1015660602449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 889990352449 + 125670250000 = 943393^2 + 354500^2 .

It is a cyclic number.

It is not a de Polignac number, because 1015660602449 - 2⁴ = 1015660602433 is a prime.

It is not a weakly prime, because it can be changed into another prime (1015660602479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507830301224 + 507830301225.

It is an arithmetic number, because the mean of its divisors is an integer number (507830301225).

Almost surely, 2^{1015660602449} is an apocalyptic number.

It is an amenable number.

1015660602449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015660602449 is an equidigital number, since it uses as much as digits as its factorization.

1015660602449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 1015660602449 in words is "one trillion, fifteen billion, six hundred sixty million, six hundred two thousand, four hundred forty-nine".