42215151515543 has 8 divisors (see below), whose sum is σ = 44055419509248. Its totient is φ = 40375285740504.

The previous prime is 42215151515533. The next prime is 42215151515567. The reversal of 42215151515543 is 34551515151224.

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 42215151515543 - 2²² = 42215147321239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42215151515494 and 42215151515503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42215151515533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100340171 + ... + 100760012.

It is an arithmetic number, because the mean of its divisors is an integer number (5506927438656).

Almost surely, 2^{42215151515543} is an apocalyptic number.

42215151515543 is a deficient number, since it is larger than the sum of its proper divisors (1840267993705).

42215151515543 is a wasteful number, since it uses less digits than its factorization.

42215151515543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201109333.

The product of its digits is 600000, while the sum is 44.

Adding to 42215151515543 its reverse (34551515151224), we get a palindrome (76766666666767).

The spelling of 42215151515543 in words is "forty-two trillion, two hundred fifteen billion, one hundred fifty-one million, five hundred fifteen thousand, five hundred forty-three".