10205455538 has 8 divisors (see below), whose sum is σ = 16208664732. Its totient is φ = 4802567296.

The previous prime is 10205455537. The next prime is 10205455543. The reversal of 10205455538 is 83555450201.

It can be written as a sum of positive squares in 2 ways, for example, as 9065515369 + 1139940169 = 95213^2 + 33763^2 .

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

It is not an unprimeable number, because it can be changed into a prime (10205455531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150080195 + ... + 150080262.

Almost surely, 2^10205455538 is an apocalyptic number.

10205455538 is a deficient number, since it is larger than the sum of its proper divisors (6003209194).

10205455538 is a wasteful number, since it uses less digits than its factorization.

10205455538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300160476.

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 10205455538 in words is "ten billion, two hundred five million, four hundred fifty-five thousand, five hundred thirty-eight".