1040534531566 has 8 divisors (see below), whose sum is σ = 1570147916400. Its totient is φ = 517151892768.

The previous prime is 1040534531563. The next prime is 1040534531573. The reversal of 1040534531566 is 6651354350401.

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

It is a super-2 number, since 2×1040534531566² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040534531563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1557686091 + ... + 1557686758.

It is an arithmetic number, because the mean of its divisors is an integer number (196268489550).

Almost surely, 2^{1040534531566} is an apocalyptic number.

1040534531566 is a deficient number, since it is larger than the sum of its proper divisors (529613384834).

1040534531566 is a wasteful number, since it uses less digits than its factorization.

1040534531566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115373018.

The product of its (nonzero) digits is 648000, while the sum is 43.

Adding to 1040534531566 its reverse (6651354350401), we get a palindrome (7691888881967).

The spelling of 1040534531566 in words is "one trillion, forty billion, five hundred thirty-four million, five hundred thirty-one thousand, five hundred sixty-six".