2066240520531 has 24 divisors (see below), whose sum is σ = 3280748328000. Its totient is φ = 1242707684400.

The previous prime is 2066240520523. The next prime is 2066240520551. The reversal of 2066240520531 is 1350250426602.

2066240520531 is a `hidden beast` number, since 2 + 0 + 6 + 62 + 40 + 5 + 20 + 531 = 666.

It is not a de Polignac number, because 2066240520531 - 2³ = 2066240520523 is a prime.

It is a super-2 number, since 2×2066240520531² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2066240520511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79647781 + ... + 79673718.

It is an arithmetic number, because the mean of its divisors is an integer number (136697847000).

Almost surely, 2^{2066240520531} is an apocalyptic number.

2066240520531 is a deficient number, since it is larger than the sum of its proper divisors (1214507807469).

2066240520531 is a wasteful number, since it uses less digits than its factorization.

2066240520531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159321647 (or 159321644 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 2066240520531 in words is "two trillion, sixty-six billion, two hundred forty million, five hundred twenty thousand, five hundred thirty-one".