207255379980 has 288 divisors, whose sum is σ = 686485437120. Its totient is φ = 46511308800.

The previous prime is 207255379943. The next prime is 207255379999. The reversal of 207255379980 is 89973552702.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 207255379980.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7514856 + ... + 7542384.

It is an arithmetic number, because the mean of its divisors is an integer number (2383629990).

Almost surely, 2^207255379980 is an apocalyptic number.

207255379980 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 207255379980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343242718560).

207255379980 is an abundant number, since it is smaller than the sum of its proper divisors (479230057140).

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

207255379980 is a wasteful number, since it uses less digits than its factorization.

207255379980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27641 (or 27628 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 57.

The spelling of 207255379980 in words is "two hundred seven billion, two hundred fifty-five million, three hundred seventy-nine thousand, nine hundred eighty".