20650190370 has 32 divisors (see below), whose sum is σ = 51269440320. Its totient is φ = 5316830400.

The previous prime is 20650190357. The next prime is 20650190387. The reversal of 20650190370 is 7309105602.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11867056 + ... + 11868795.

It is an arithmetic number, because the mean of its divisors is an integer number (1602170010).

Almost surely, 2^20650190370 is an apocalyptic number.

20650190370 is an abundant number, since it is smaller than the sum of its proper divisors (30619249950).

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

20650190370 is a wasteful number, since it uses less digits than its factorization.

20650190370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23735890.

The product of its (nonzero) digits is 11340, while the sum is 33.

Adding to 20650190370 its reverse (7309105602), we get a palindrome (27959295972).

The spelling of 20650190370 in words is "twenty billion, six hundred fifty million, one hundred ninety thousand, three hundred seventy".