630775433665 has 32 divisors (see below), whose sum is σ = 895365838080. Its totient is φ = 422100999936.

The previous prime is 630775433663. The next prime is 630775433689. The reversal of 630775433665 is 566334577036.

It is a cyclic number.

It is not a de Polignac number, because 630775433665 - 2¹ = 630775433663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (630775433663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11074842 + ... + 11131651.

It is an arithmetic number, because the mean of its divisors is an integer number (27980182440).

Almost surely, 2^630775433665 is an apocalyptic number.

630775433665 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

630775433665 is a deficient number, since it is larger than the sum of its proper divisors (264590404415).

630775433665 is a wasteful number, since it uses less digits than its factorization.

630775433665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22206553.

The product of its (nonzero) digits is 28576800, while the sum is 55.

The spelling of 630775433665 in words is "six hundred thirty billion, seven hundred seventy-five million, four hundred thirty-three thousand, six hundred sixty-five".