147144779520 has 144 divisors (see below), whose sum is σ = 494677760640. Its totient is φ = 37173399552.

The previous prime is 147144779519. The next prime is 147144779533. The reversal of 147144779520 is 25977441741.

It is a super-2 number, since 2×147144779520² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 935434 + ... + 1081353.

Almost surely, 2^147144779520 is an apocalyptic number.

147144779520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147144779520 is an abundant number, since it is smaller than the sum of its proper divisors (347532981120).

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

147144779520 is a wasteful number, since it uses less digits than its factorization.

147144779520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016830 (or 2016816 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 51.

The spelling of 147144779520 in words is "one hundred forty-seven billion, one hundred forty-four million, seven hundred seventy-nine thousand, five hundred twenty".