20172550227270 has 64 divisors (see below), whose sum is σ = 55578542100480. Its totient is φ = 4590192071808.

The previous prime is 20172550227211. The next prime is 20172550227287. The reversal of 20172550227270 is 7272205527102.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 31 ways as a sum of consecutive naturals, for example, 215333805 + ... + 215427464.

It is an arithmetic number, because the mean of its divisors is an integer number (868414720320).

Almost surely, 2^{20172550227270} is an apocalyptic number.

20172550227270 is an abundant number, since it is smaller than the sum of its proper divisors (35405991873210).

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

20172550227270 is a wasteful number, since it uses less digits than its factorization.

20172550227270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430761509.

The product of its (nonzero) digits is 274400, while the sum is 42.

The spelling of 20172550227270 in words is "twenty trillion, one hundred seventy-two billion, five hundred fifty million, two hundred twenty-seven thousand, two hundred seventy".