20502253370 has 32 divisors (see below), whose sum is σ = 37775472768. Its totient is φ = 8007386688.

The previous prime is 20502253363. The next prime is 20502253397. The reversal of 20502253370 is 7335220502.

It is a happy 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, 1574627 + ... + 1587593.

It is an arithmetic number, because the mean of its divisors is an integer number (1180483524).

Almost surely, 2^20502253370 is an apocalyptic number.

20502253370 is a deficient number, since it is larger than the sum of its proper divisors (17273219398).

20502253370 is a wasteful number, since it uses less digits than its factorization.

20502253370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16694.

The product of its (nonzero) digits is 12600, while the sum is 29.

Adding to 20502253370 its reverse (7335220502), we get a palindrome (27837473872).

The spelling of 20502253370 in words is "twenty billion, five hundred two million, two hundred fifty-three thousand, three hundred seventy".