650121648 has 160 divisors (see below), whose sum is σ = 1886879232. Its totient is φ = 191232000.

The previous prime is 650121631. The next prime is 650121673. The reversal of 650121648 is 846121056.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3892861 + ... + 3893027.

Almost surely, 2^650121648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650121648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (943439616).

650121648 is an abundant number, since it is smaller than the sum of its proper divisors (1236757584).

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

650121648 is a wasteful number, since it uses less digits than its factorization.

650121648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 650121648 is about 25497.4831699131. The cubic root of 650121648 is about 866.2931410751.

The spelling of 650121648 in words is "six hundred fifty million, one hundred twenty-one thousand, six hundred forty-eight".