149819855205 has 32 divisors (see below), whose sum is σ = 247541253120. Its totient is φ = 77296112640.

The previous prime is 149819855201. The next prime is 149819855231. The reversal of 149819855205 is 502558918941.

149819855205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 149819855205 - 2² = 149819855201 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149819855201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1151439 + ... + 1274931.

It is an arithmetic number, because the mean of its divisors is an integer number (7735664160).

Almost surely, 2^149819855205 is an apocalyptic number.

149819855205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149819855205 is a deficient number, since it is larger than the sum of its proper divisors (97721397915).

149819855205 is a wasteful number, since it uses less digits than its factorization.

149819855205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126141.

The product of its (nonzero) digits is 5184000, while the sum is 57.

The spelling of 149819855205 in words is "one hundred forty-nine billion, eight hundred nineteen million, eight hundred fifty-five thousand, two hundred five".