633641416025 has 24 divisors (see below), whose sum is σ = 791757609240. Its totient is φ = 503017781760.

The previous prime is 633641416019. The next prime is 633641416027. The reversal of 633641416025 is 520614146336.

It can be written as a sum of positive squares in 12 ways, for example, as 308143781449 + 325497634576 = 555107^2 + 570524^2 .

It is not a de Polignac number, because 633641416025 - 2¹⁸ = 633641153881 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (633641416027) 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, 9134171 + ... + 9203279.

It is an arithmetic number, because the mean of its divisors is an integer number (32989900385).

Almost surely, 2^633641416025 is an apocalyptic number.

It is an amenable number.

633641416025 is a deficient number, since it is larger than the sum of its proper divisors (158116193215).

633641416025 is a wasteful number, since it uses less digits than its factorization.

633641416025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71933 (or 71928 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 633641416025 in words is "six hundred thirty-three billion, six hundred forty-one million, four hundred sixteen thousand, twenty-five".