265641206033998 has 4 divisors (see below), whose sum is σ = 398461809051000. Its totient is φ = 132820603016998.

The previous prime is 265641206033981. The next prime is 265641206033999. The reversal of 265641206033998 is 899330602146562.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265641206033999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66410301508498 + ... + 66410301508501.

It is an arithmetic number, because the mean of its divisors is an integer number (99615452262750).

Almost surely, 2^{265641206033998} is an apocalyptic number.

265641206033998 is a deficient number, since it is larger than the sum of its proper divisors (132820603017002).

265641206033998 is a wasteful number, since it uses less digits than its factorization.

265641206033998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132820603017001.

The product of its (nonzero) digits is 100776960, while the sum is 64.

The spelling of 265641206033998 in words is "two hundred sixty-five trillion, six hundred forty-one billion, two hundred six million, thirty-three thousand, nine hundred ninety-eight".