20266927548 has 24 divisors (see below), whose sum is σ = 54045140352. Its totient is φ = 5790550704.

The previous prime is 20266927537. The next prime is 20266927607. The reversal of 20266927548 is 84572966202.

It is a happy number.

It is a super-3 number, since 3×20266927548³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20266927548.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120636390 + ... + 120636557.

It is an arithmetic number, because the mean of its divisors is an integer number (2251880848).

Almost surely, 2^20266927548 is an apocalyptic number.

20266927548 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20266927548 is an abundant number, since it is smaller than the sum of its proper divisors (33778212804).

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

20266927548 is a wasteful number, since it uses less digits than its factorization.

20266927548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241272961 (or 241272959 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 20266927548 in words is "twenty billion, two hundred sixty-six million, nine hundred twenty-seven thousand, five hundred forty-eight".