15045340301561 has 2 divisors, whose sum is σ = 15045340301562. Its totient is φ = 15045340301560.

The previous prime is 15045340301533. The next prime is 15045340301611. The reversal of 15045340301561 is 16510304354051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14433160810000 + 612179491561 = 3799100^2 + 782419^2 .

It is a cyclic number.

It is not a de Polignac number, because 15045340301561 - 2²² = 15045336107257 is a prime.

It is not a weakly prime, because it can be changed into another prime (15045340301521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7522670150780 + 7522670150781.

It is an arithmetic number, because the mean of its divisors is an integer number (7522670150781).

Almost surely, 2^{15045340301561} is an apocalyptic number.

It is an amenable number.

15045340301561 is a deficient number, since it is larger than the sum of its proper divisors (1).

15045340301561 is an equidigital number, since it uses as much as digits as its factorization.

15045340301561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 15045340301561 in words is "fifteen trillion, forty-five billion, three hundred forty million, three hundred one thousand, five hundred sixty-one".