42166052545 has 8 divisors (see below), whose sum is σ = 50611852224. Its totient is φ = 33724449264.

The previous prime is 42166052521. The next prime is 42166052567. The reversal of 42166052545 is 54525066124.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42166052545 - 2¹¹ = 42166050497 is a prime.

It is a super-4 number, since 4×42166052545⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42166052498 and 42166052507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1026949 + ... + 1067218.

It is an arithmetic number, because the mean of its divisors is an integer number (6326481528).

Almost surely, 2^42166052545 is an apocalyptic number.

It is an amenable number.

42166052545 is a deficient number, since it is larger than the sum of its proper divisors (8445799679).

42166052545 is a wasteful number, since it uses less digits than its factorization.

42166052545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098199.

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 42166052545 in words is "forty-two billion, one hundred sixty-six million, fifty-two thousand, five hundred forty-five".