42406564161535 has 16 divisors (see below), whose sum is σ = 60163007284800. Its totient is φ = 28076070064896.

The previous prime is 42406564161461. The next prime is 42406564161653. The reversal of 42406564161535 is 53516146560424.

It is not a de Polignac number, because 42406564161535 - 2¹⁵ = 42406564128767 is a prime.

It is a super-4 number, since 4×42406564161535⁴ (a number of 56 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20889932070 + ... + 20889934099.

It is an arithmetic number, because the mean of its divisors is an integer number (3760187955300).

Almost surely, 2^{42406564161535} is an apocalyptic number.

42406564161535 is a deficient number, since it is larger than the sum of its proper divisors (17756443123265).

42406564161535 is a wasteful number, since it uses less digits than its factorization.

42406564161535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41779866210.

The product of its (nonzero) digits is 10368000, while the sum is 52.

The spelling of 42406564161535 in words is "forty-two trillion, four hundred six billion, five hundred sixty-four million, one hundred sixty-one thousand, five hundred thirty-five".