20770225060 has 144 divisors (see below), whose sum is σ = 51325263360.
Its totient is φ = 7030333440.
The previous prime is 20770225057. The next prime is 20770225061. The reversal of 20770225060 is 6052207702.
20770225060 = T159 + T160 + ... +
It is a Harshad number since it is a multiple of its sum of digits (31).
It is not an unprimeable number, because it can be changed into a prime (20770225061) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1985604 + ... + 1996036.
It is an arithmetic number, because the mean of its divisors is an integer number (356425440).
Almost surely, 220770225060 is an apocalyptic number.
20770225060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20770225060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25662631680).
20770225060 is an abundant number, since it is smaller than the sum of its proper divisors (30555038300).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20770225060 is a wasteful number, since it uses less digits than its factorization.
20770225060 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10518 (or 10503 counting only the distinct ones).
The product of its (nonzero) digits is 11760, while the sum is 31.
The spelling of 20770225060 in words is "twenty billion, seven hundred seventy million, two hundred twenty-five thousand, sixty".