20200151212555 has 4 divisors (see below), whose sum is σ = 24240181455072. Its totient is φ = 16160120970040.

The previous prime is 20200151212547. The next prime is 20200151212559. The reversal of 20200151212555 is 55521215100202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20200151212555 - 2³ = 20200151212547 is a prime.

It is a super-2 number, since 2×20200151212555² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20200151212559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2020015121251 + ... + 2020015121260.

It is an arithmetic number, because the mean of its divisors is an integer number (6060045363768).

Almost surely, 2^{20200151212555} is an apocalyptic number.

20200151212555 is a deficient number, since it is larger than the sum of its proper divisors (4040030242517).

20200151212555 is an equidigital number, since it uses as much as digits as its factorization.

20200151212555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040030242516.

The product of its (nonzero) digits is 10000, while the sum is 31.

Adding to 20200151212555 its reverse (55521215100202), we get a palindrome (75721366312757).

The spelling of 20200151212555 in words is "twenty trillion, two hundred billion, one hundred fifty-one million, two hundred twelve thousand, five hundred fifty-five".