140550509806 has 32 divisors (see below), whose sum is σ = 243710493120. Its totient is φ = 59546112000.

The previous prime is 140550509761. The next prime is 140550509809. The reversal of 140550509806 is 608905055041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140550509809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 828840 + ... + 983908.

It is an arithmetic number, because the mean of its divisors is an integer number (7615952910).

Almost surely, 2^140550509806 is an apocalyptic number.

140550509806 is a deficient number, since it is larger than the sum of its proper divisors (103159983314).

140550509806 is a wasteful number, since it uses less digits than its factorization.

140550509806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155820.

The product of its (nonzero) digits is 216000, while the sum is 43.

The spelling of 140550509806 in words is "one hundred forty billion, five hundred fifty million, five hundred nine thousand, eight hundred six".