195266680576 has 144 divisors (see below), whose sum is σ = 458716916448. Its totient is φ = 81959321600.

The previous prime is 195266680541. The next prime is 195266680589. The reversal of 195266680576 is 675086662591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2498736 + ... + 2575696.

It is an arithmetic number, because the mean of its divisors is an integer number (3185534142).

Almost surely, 2^195266680576 is an apocalyptic number.

195266680576 is a gapful number since it is divisible by the number (16) 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 195266680576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229358458224).

195266680576 is an abundant number, since it is smaller than the sum of its proper divisors (263450235872).

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

195266680576 is a wasteful number, since it uses less digits than its factorization.

195266680576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77058 (or 77044 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 61.

The spelling of 195266680576 in words is "one hundred ninety-five billion, two hundred sixty-six million, six hundred eighty thousand, five hundred seventy-six".