20163539038 has 4 divisors (see below), whose sum is σ = 30245308560. Its totient is φ = 10081769518.

The previous prime is 20163539003. The next prime is 20163539051. The reversal of 20163539038 is 83093536102.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5040884758 + ... + 5040884761.

It is an arithmetic number, because the mean of its divisors is an integer number (7561327140).

Almost surely, 2^20163539038 is an apocalyptic number.

20163539038 is a deficient number, since it is larger than the sum of its proper divisors (10081769522).

20163539038 is a wasteful number, since it uses less digits than its factorization.

20163539038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10081769521.

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 20163539038 in words is "twenty billion, one hundred sixty-three million, five hundred thirty-nine thousand, thirty-eight".