150051991905 has 24 divisors (see below), whose sum is σ = 260302880448. Its totient is φ = 79962264096.

The previous prime is 150051991889. The next prime is 150051991909. The reversal of 150051991905 is 509199150051.

150051991905 is a `hidden beast` number, since 1 + 500 + 51 + 9 + 9 + 1 + 90 + 5 = 666.

It is not a de Polignac number, because 150051991905 - 2⁴ = 150051991889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (150051991909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1308207 + ... + 1418276.

It is an arithmetic number, because the mean of its divisors is an integer number (10845953352).

Almost surely, 2^150051991905 is an apocalyptic number.

150051991905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

150051991905 is a deficient number, since it is larger than the sum of its proper divisors (110250888543).

150051991905 is a wasteful number, since it uses less digits than its factorization.

150051991905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2727717 (or 2727714 counting only the distinct ones).

The product of its (nonzero) digits is 91125, while the sum is 45.

The spelling of 150051991905 in words is "one hundred fifty billion, fifty-one million, nine hundred ninety-one thousand, nine hundred five".