141981785064 has 80 divisors (see below), whose sum is σ = 454491972000. Its totient is φ = 40566223008.

The previous prime is 141981785059. The next prime is 141981785069. The reversal of 141981785064 is 460587189141.

141981785064 is a `hidden beast` number, since 1 + 41 + 98 + 1 + 7 + 8 + 506 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (141981785059) and next prime (141981785069).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 141981785064.

It is not an unprimeable number, because it can be changed into a prime (141981785069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15646014 + ... + 15655085.

It is an arithmetic number, because the mean of its divisors is an integer number (5681149650).

Almost surely, 2^141981785064 is an apocalyptic number.

141981785064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

141981785064 is an abundant number, since it is smaller than the sum of its proper divisors (312510186936).

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

141981785064 is a wasteful number, since it uses less digits than its factorization.

141981785064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31301124 (or 31301111 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The spelling of 141981785064 in words is "one hundred forty-one billion, nine hundred eighty-one million, seven hundred eighty-five thousand, sixty-four".