1662542630131 has 2 divisors, whose sum is σ = 1662542630132. Its totient is φ = 1662542630130.

The previous prime is 1662542630123. The next prime is 1662542630183. The reversal of 1662542630131 is 1310362452661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1662542630131 - 2³ = 1662542630123 is a prime.

It is a super-2 number, since 2×1662542630131² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1662542630191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 831271315065 + 831271315066.

It is an arithmetic number, because the mean of its divisors is an integer number (831271315066).

Almost surely, 2^{1662542630131} is an apocalyptic number.

1662542630131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1662542630131 is an equidigital number, since it uses as much as digits as its factorization.

1662542630131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 1662542630131 in words is "one trillion, six hundred sixty-two billion, five hundred forty-two million, six hundred thirty thousand, one hundred thirty-one".