204115513501 has 8 divisors (see below), whose sum is σ = 208879957440. Its totient is φ = 199351868352.

The previous prime is 204115513471. The next prime is 204115513517. The reversal of 204115513501 is 105315511402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204115513501 - 2²⁵ = 204081959069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204115513501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204115513531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333765 + ... + 720853.

It is an arithmetic number, because the mean of its divisors is an integer number (26109994680).

Almost surely, 2^204115513501 is an apocalyptic number.

It is an amenable number.

204115513501 is a deficient number, since it is larger than the sum of its proper divisors (4764443939).

204115513501 is a wasteful number, since it uses less digits than its factorization.

204115513501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399395.

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 204115513501 in words is "two hundred four billion, one hundred fifteen million, five hundred thirteen thousand, five hundred one".