20351702008 has 32 divisors (see below), whose sum is σ = 41869139760. Its totient is φ = 9197294080.

The previous prime is 20351701991. The next prime is 20351702081. The reversal of 20351702008 is 80020715302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653185 + ... + 683632.

Almost surely, 2^20351702008 is an apocalyptic number.

It is an amenable number.

20351702008 is an abundant number, since it is smaller than the sum of its proper divisors (21517437752).

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

20351702008 is a wasteful number, since it uses less digits than its factorization.

20351702008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337007 (or 1337003 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The spelling of 20351702008 in words is "twenty billion, three hundred fifty-one million, seven hundred two thousand, eight".