150520221455 has 8 divisors (see below), whose sum is σ = 180634722000. Its totient is φ = 120409206336.

The previous prime is 150520221409. The next prime is 150520221457. The reversal of 150520221455 is 554122025051.

It is a happy number.

150520221455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 150520221455 - 2⁸ = 150520221199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150520221457) 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 7 ways as a sum of consecutive naturals, for example, 775385 + ... + 949874.

It is an arithmetic number, because the mean of its divisors is an integer number (22579340250).

Almost surely, 2^150520221455 is an apocalyptic number.

150520221455 is a deficient number, since it is larger than the sum of its proper divisors (30114500545).

150520221455 is a wasteful number, since it uses less digits than its factorization.

150520221455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742713.

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 150520221455 in words is "one hundred fifty billion, five hundred twenty million, two hundred twenty-one thousand, four hundred fifty-five".