654653451667 has 2 divisors, whose sum is σ = 654653451668. Its totient is φ = 654653451666.

The previous prime is 654653451629. The next prime is 654653451671. The reversal of 654653451667 is 766154356456.

It is a happy number.

654653451667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 654653451667 - 2²⁷ = 654519233939 is a prime.

It is a super-2 number, since 2×654653451667² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (654653481667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327326725833 + 327326725834.

It is an arithmetic number, because the mean of its divisors is an integer number (327326725834).

Almost surely, 2^654653451667 is an apocalyptic number.

654653451667 is a deficient number, since it is larger than the sum of its proper divisors (1).

654653451667 is an equidigital number, since it uses as much as digits as its factorization.

654653451667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432000, while the sum is 58.

The spelling of 654653451667 in words is "six hundred fifty-four billion, six hundred fifty-three million, four hundred fifty-one thousand, six hundred sixty-seven".