20350211649908 has 48 divisors (see below), whose sum is σ = 43166271222144. Its totient is φ = 8194830566400.

The previous prime is 20350211649907. The next prime is 20350211649913. The reversal of 20350211649908 is 80994611205302.

It is a super-2 number, since 2×20350211649908² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20350211649907) by changing a digit.

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, 35281766 + ... + 35853917.

It is an arithmetic number, because the mean of its divisors is an integer number (899297317128).

Almost surely, 2^{20350211649908} is an apocalyptic number.

20350211649908 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20350211649908 is an abundant number, since it is smaller than the sum of its proper divisors (22816059572236).

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

20350211649908 is a wasteful number, since it uses less digits than its factorization.

20350211649908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71136312 (or 71136310 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 20350211649908 in words is "twenty trillion, three hundred fifty billion, two hundred eleven million, six hundred forty-nine thousand, nine hundred eight".