654643432611 has 96 divisors (see below), whose sum is σ = 1106602922880. Its totient is φ = 365212108800.

The previous prime is 654643432607. The next prime is 654643432613. The reversal of 654643432611 is 116234346456.

654643432611 is a `hidden beast` number, since 6 + 5 + 46 + 4 + 343 + 261 + 1 = 666.

It is not a de Polignac number, because 654643432611 - 2² = 654643432607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (654643432613) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 316404685 + ... + 316406753.

It is an arithmetic number, because the mean of its divisors is an integer number (11527113780).

Almost surely, 2^654643432611 is an apocalyptic number.

654643432611 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

654643432611 is a deficient number, since it is larger than the sum of its proper divisors (451959490269).

654643432611 is a wasteful number, since it uses less digits than its factorization.

654643432611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2717 (or 2714 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The spelling of 654643432611 in words is "six hundred fifty-four billion, six hundred forty-three million, four hundred thirty-two thousand, six hundred eleven".