20270551231407 has 16 divisors (see below), whose sum is σ = 28202913462528. Its totient is φ = 12925961885760.

The previous prime is 20270551231363. The next prime is 20270551231457. The reversal of 20270551231407 is 70413215507202.

It is not a de Polignac number, because 20270551231407 - 2¹⁶ = 20270551165871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20270551231457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2770432 + ... + 6943802.

It is an arithmetic number, because the mean of its divisors is an integer number (1762682091408).

Almost surely, 2^{20270551231407} is an apocalyptic number.

20270551231407 is a deficient number, since it is larger than the sum of its proper divisors (7932362231121).

20270551231407 is a wasteful number, since it uses less digits than its factorization.

20270551231407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243790.

The product of its (nonzero) digits is 117600, while the sum is 39.

Adding to 20270551231407 its reverse (70413215507202), we get a palindrome (90683766738609).

The spelling of 20270551231407 in words is "twenty trillion, two hundred seventy billion, five hundred fifty-one million, two hundred thirty-one thousand, four hundred seven".