561479360145 has 16 divisors (see below), whose sum is σ = 980036701632. Its totient is φ = 272232416960.

The previous prime is 561479360131. The next prime is 561479360153. The reversal of 561479360145 is 541063974165.

It is not a de Polignac number, because 561479360145 - 2⁴ = 561479360129 is a prime.

It is a super-2 number, since 2×561479360145² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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, 1701452442 + ... + 1701452771.

It is an arithmetic number, because the mean of its divisors is an integer number (61252293852).

Almost surely, 2^561479360145 is an apocalyptic number.

561479360145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

561479360145 is a deficient number, since it is larger than the sum of its proper divisors (418557341487).

561479360145 is a wasteful number, since it uses less digits than its factorization.

561479360145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402905232.

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 561479360145 in words is "five hundred sixty-one billion, four hundred seventy-nine million, three hundred sixty thousand, one hundred forty-five".