612666441 has 24 divisors (see below), whose sum is σ = 917304960. Its totient is φ = 393573600.

The previous prime is 612666427. The next prime is 612666469. The reversal of 612666441 is 144666216.

It is not a de Polignac number, because 612666441 - 2⁶ = 612666377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 612666396 and 612666405.

It is not an unprimeable number, because it can be changed into a prime (612666401) 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, 146976 + ... + 151086.

It is an arithmetic number, because the mean of its divisors is an integer number (38221040).

Almost surely, 2^612666441 is an apocalyptic number.

It is an amenable number.

612666441 is a deficient number, since it is larger than the sum of its proper divisors (304638519).

612666441 is a wasteful number, since it uses less digits than its factorization.

612666441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4717 (or 4714 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 612666441 is about 24752.0997291139. The cubic root of 612666441 is about 849.3265443007.

The spelling of 612666441 in words is "six hundred twelve million, six hundred sixty-six thousand, four hundred forty-one".