150221664 has 36 divisors (see below), whose sum is σ = 427193676. Its totient is φ = 50073792.

The previous prime is 150221623. The next prime is 150221681. The reversal of 150221664 is 466122051.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 260514 + ... + 261089.

It is an arithmetic number, because the mean of its divisors is an integer number (11866491).

Almost surely, 2^150221664 is an apocalyptic number.

It is an amenable number.

150221664 is an abundant number, since it is smaller than the sum of its proper divisors (276972012).

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

150221664 is a wasteful number, since it uses less digits than its factorization.

150221664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521619 (or 521608 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 150221664 is about 12256.4947680811. The cubic root of 150221664 is about 531.5908814956.

The spelling of 150221664 in words is "one hundred fifty million, two hundred twenty-one thousand, six hundred sixty-four".