20200151212556 has 96 divisors (see below), whose sum is σ = 42370642944000. Its totient is φ = 8243263461888.

The previous prime is 20200151212547. The next prime is 20200151212559. The reversal of 20200151212556 is 65521215100202.

It is a happy number.

It is a super-2 number, since 2×20200151212556² (a number of 27 digits) contains 22 as substring.

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

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 867729725 + ... + 867753003.

It is an arithmetic number, because the mean of its divisors is an integer number (441360864000).

Almost surely, 2^{20200151212556} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20200151212556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21185321472000).

20200151212556 is an abundant number, since it is smaller than the sum of its proper divisors (22170491731444).

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

20200151212556 is a wasteful number, since it uses less digits than its factorization.

20200151212556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38031 (or 38029 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 20200151212556 its reverse (65521215100202), we get a palindrome (85721366312758).

The spelling of 20200151212556 in words is "twenty trillion, two hundred billion, one hundred fifty-one million, two hundred twelve thousand, five hundred fifty-six".