42653560066531 has 2 divisors, whose sum is σ = 42653560066532. Its totient is φ = 42653560066530.

The previous prime is 42653560066517. The next prime is 42653560066553. The reversal of 42653560066531 is 13566006535624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42653560066531 - 2²³ = 42653551677923 is a prime.

It is a super-2 number, since 2×42653560066531² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42653560066511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21326780033265 + 21326780033266.

It is an arithmetic number, because the mean of its divisors is an integer number (21326780033266).

Almost surely, 2^{42653560066531} is an apocalyptic number.

42653560066531 is a deficient number, since it is larger than the sum of its proper divisors (1).

42653560066531 is an equidigital number, since it uses as much as digits as its factorization.

42653560066531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664000, while the sum is 52.

The spelling of 42653560066531 in words is "forty-two trillion, six hundred fifty-three billion, five hundred sixty million, sixty-six thousand, five hundred thirty-one".