42564304155545 has 64 divisors (see below), whose sum is σ = 54978701944320. Its totient is φ = 31519449907200.

The previous prime is 42564304155533. The next prime is 42564304155553. The reversal of 42564304155545 is 54555140346524.

It is a happy number.

It is not a de Polignac number, because 42564304155545 - 2³⁰ = 42563230413721 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6567548705 + ... + 6567555185.

It is an arithmetic number, because the mean of its divisors is an integer number (859042217880).

Almost surely, 2^{42564304155545} is an apocalyptic number.

It is an amenable number.

42564304155545 is a deficient number, since it is larger than the sum of its proper divisors (12414397788775).

42564304155545 is a wasteful number, since it uses less digits than its factorization.

42564304155545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9426.

The product of its (nonzero) digits is 28800000, while the sum is 53.

The spelling of 42564304155545 in words is "forty-two trillion, five hundred sixty-four billion, three hundred four million, one hundred fifty-five thousand, five hundred forty-five".