20104640102 has 4 divisors (see below), whose sum is σ = 30156960156. Its totient is φ = 10052320050.

The previous prime is 20104640071. The next prime is 20104640119.

20104640102 is nontrivially palindromic in base 10.

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, 5026160024 + ... + 5026160027.

It is an arithmetic number, because the mean of its divisors is an integer number (7539240039).

Almost surely, 2^20104640102 is an apocalyptic number.

20104640102 is a deficient number, since it is larger than the sum of its proper divisors (10052320054).

20104640102 is a wasteful number, since it uses less digits than its factorization.

20104640102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10052320053.

The product of its (nonzero) digits is 384, while the sum is 20.

The spelling of 20104640102 in words is "twenty billion, one hundred four million, six hundred forty thousand, one hundred two".