20175740620 has 24 divisors (see below), whose sum is σ = 48421777824. Its totient is φ = 6917396736.

The previous prime is 20175740593. The next prime is 20175740623. The reversal of 20175740620 is 2604757102.

It is not an unprimeable number, because it can be changed into a prime (20175740623) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 72056077 + ... + 72056356.

It is an arithmetic number, because the mean of its divisors is an integer number (2017574076).

Almost surely, 2^20175740620 is an apocalyptic number.

20175740620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20175740620 is an abundant number, since it is smaller than the sum of its proper divisors (28246037204).

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

20175740620 is a wasteful number, since it uses less digits than its factorization.

20175740620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144112449 (or 144112447 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The spelling of 20175740620 in words is "twenty billion, one hundred seventy-five million, seven hundred forty thousand, six hundred twenty".