15346423561 has 16 divisors (see below), whose sum is σ = 18307277568. Its totient is φ = 12578068800.

The previous prime is 15346423559. The next prime is 15346423571. The reversal of 15346423561 is 16532464351.

It is a cyclic number.

It is not a de Polignac number, because 15346423561 - 2¹ = 15346423559 is a prime.

It is a super-2 number, since 2×15346423561² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15346423531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 543451 + ... + 570991.

It is an arithmetic number, because the mean of its divisors is an integer number (1144204848).

Almost surely, 2^15346423561 is an apocalyptic number.

It is an amenable number.

15346423561 is a deficient number, since it is larger than the sum of its proper divisors (2960854007).

15346423561 is a wasteful number, since it uses less digits than its factorization.

15346423561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31032.

The product of its digits is 259200, while the sum is 40.

The spelling of 15346423561 in words is "fifteen billion, three hundred forty-six million, four hundred twenty-three thousand, five hundred sixty-one".