204515501115407 has 2 divisors, whose sum is σ = 204515501115408. Its totient is φ = 204515501115406.

The previous prime is 204515501115319. The next prime is 204515501115469. The reversal of 204515501115407 is 704511105515402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204515501115407 - 2⁴⁰ = 203415989487631 is a prime.

It is a super-2 number, since 2×204515501115407² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204515501105407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102257750557703 + 102257750557704.

It is an arithmetic number, because the mean of its divisors is an integer number (102257750557704).

Almost surely, 2^{204515501115407} is an apocalyptic number.

204515501115407 is a deficient number, since it is larger than the sum of its proper divisors (1).

204515501115407 is an equidigital number, since it uses as much as digits as its factorization.

204515501115407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140000, while the sum is 41.

The spelling of 204515501115407 in words is "two hundred four trillion, five hundred fifteen billion, five hundred one million, one hundred fifteen thousand, four hundred seven".