20267376243276 has 96 divisors (see below), whose sum is σ = 51016483123200. Its totient is φ = 6241325806080.

The previous prime is 20267376243271. The next prime is 20267376243311. The reversal of 20267376243276 is 67234267376202.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (20267376243271) 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, 20446006 + ... + 21414338.

It is an arithmetic number, because the mean of its divisors is an integer number (531421699200).

Almost surely, 2^{20267376243276} 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 20267376243276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25508241561600).

20267376243276 is an abundant number, since it is smaller than the sum of its proper divisors (30749106879924).

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

20267376243276 is a wasteful number, since it uses less digits than its factorization.

20267376243276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970639 (or 970637 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 57.

The spelling of 20267376243276 in words is "twenty trillion, two hundred sixty-seven billion, three hundred seventy-six million, two hundred forty-three thousand, two hundred seventy-six".