650211264 has 84 divisors (see below), whose sum is σ = 1870292424. Its totient is φ = 215972352.

The previous prime is 650211253. The next prime is 650211277. The reversal of 650211264 is 462112056.

650211264 is a `hidden beast` number, since 650 + 2 + 1 + 1 + 2 + 6 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174994 + ... + 178670.

It is an arithmetic number, because the mean of its divisors is an integer number (22265386).

Almost surely, 2^650211264 is an apocalyptic number.

650211264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650211264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (935146212).

650211264 is an abundant number, since it is smaller than the sum of its proper divisors (1220081160).

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

650211264 is a wasteful number, since it uses less digits than its factorization.

650211264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002 (or 3989 counting only the distinct ones).

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

The square root of 650211264 is about 25499.2404592764. The cubic root of 650211264 is about 866.3329439640.

It can be divided in two parts, 6502 and 11264, that added together give a triangular number (17766 = T₁₈₈).

The spelling of 650211264 in words is "six hundred fifty million, two hundred eleven thousand, two hundred sixty-four".