141981785550 has 120 divisors (see below), whose sum is σ = 430362702792. Its totient is φ = 34419816000.

The previous prime is 141981785503. The next prime is 141981785557. The reversal of 141981785550 is 55587189141.

141981785550 is a `hidden beast` number, since 1 + 4 + 1 + 9 + 8 + 1 + 7 + 85 + 550 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141981785557) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1548961 + ... + 1638060.

Almost surely, 2^141981785550 is an apocalyptic number.

141981785550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

141981785550 is an abundant number, since it is smaller than the sum of its proper divisors (288380917242).

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

141981785550 is a wasteful number, since it uses less digits than its factorization.

141981785550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187056 (or 3187042 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 54.

The spelling of 141981785550 in words is "one hundred forty-one billion, nine hundred eighty-one million, seven hundred eighty-five thousand, five hundred fifty".