205635139990384 has 80 divisors (see below), whose sum is σ = 429208783567200. Its totient is φ = 94876867058688.

The previous prime is 205635139990339. The next prime is 205635139990411. The reversal of 205635139990384 is 483099931536502.

205635139990384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×205635139990384² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10378788862 + ... + 10378808674.

It is an arithmetic number, because the mean of its divisors is an integer number (5365109794590).

Almost surely, 2^{205635139990384} is an apocalyptic number.

It is an amenable number.

205635139990384 is an abundant number, since it is smaller than the sum of its proper divisors (223573643576816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205635139990384 is a wasteful number, since it uses less digits than its factorization.

205635139990384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33962 (or 33956 counting only the distinct ones).

The product of its (nonzero) digits is 188956800, while the sum is 67.

The spelling of 205635139990384 in words is "two hundred five trillion, six hundred thirty-five billion, one hundred thirty-nine million, nine hundred ninety thousand, three hundred eighty-four".