147991335680 has 72 divisors (see below), whose sum is σ = 354822857424. Its totient is φ = 59140198400.

The previous prime is 147991335671. The next prime is 147991335707. The reversal of 147991335680 is 86533199741.

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, 1303595 + ... + 1412565.

It is an arithmetic number, because the mean of its divisors is an integer number (4928095242).

Almost surely, 2^147991335680 is an apocalyptic number.

147991335680 is a gapful number since it is divisible by the number (10) 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 147991335680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177411428712).

147991335680 is an abundant number, since it is smaller than the sum of its proper divisors (206831521744).

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

147991335680 is a wasteful number, since it uses less digits than its factorization.

147991335680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110053 (or 110039 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 147991335680 in words is "one hundred forty-seven billion, nine hundred ninety-one million, three hundred thirty-five thousand, six hundred eighty".