20266224860 has 48 divisors (see below), whose sum is σ = 50316154560. Its totient is φ = 6708817920.

The previous prime is 20266224857. The next prime is 20266224863. The reversal of 20266224860 is 6842266202.

It is an interprime number because it is at equal distance from previous prime (20266224857) and next prime (20266224863).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20266224863) 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, 2491781 + ... + 2499900.

It is an arithmetic number, because the mean of its divisors is an integer number (1048253220).

Almost surely, 2^20266224860 is an apocalyptic number.

20266224860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20266224860 is an abundant number, since it is smaller than the sum of its proper divisors (30049929700).

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

20266224860 is a wasteful number, since it uses less digits than its factorization.

20266224860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4991726 (or 4991724 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

The spelling of 20266224860 in words is "twenty billion, two hundred sixty-six million, two hundred twenty-four thousand, eight hundred sixty".