20035503870 has 32 divisors (see below), whose sum is σ = 48089922048. Its totient is φ = 5342277408.

The previous prime is 20035503841. The next prime is 20035503923. The reversal of 20035503870 is 7830553002.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 353007 + ... + 405813.

It is an arithmetic number, because the mean of its divisors is an integer number (1502810064).

Almost surely, 2^20035503870 is an apocalyptic number.

20035503870 is an abundant number, since it is smaller than the sum of its proper divisors (28054418178).

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

20035503870 is a wasteful number, since it uses less digits than its factorization.

20035503870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65464.

The product of its (nonzero) digits is 25200, while the sum is 33.

The spelling of 20035503870 in words is "twenty billion, thirty-five million, five hundred three thousand, eight hundred seventy".