2220664950 has 384 divisors, whose sum is σ = 7739504640. Its totient is φ = 456192000.

The previous prime is 2220664949. The next prime is 2220664961. The reversal of 2220664950 is 594660222.

2220664950 is a `hidden beast` number, since 2 + 2 + 2 + 0 + 6 + 649 + 5 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3694650 + ... + 3695250.

It is an arithmetic number, because the mean of its divisors is an integer number (20154960).

Almost surely, 2^2220664950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2220664950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3869752320).

2220664950 is an abundant number, since it is smaller than the sum of its proper divisors (5518839690).

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

2220664950 is a wasteful number, since it uses less digits than its factorization.

2220664950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 2220664950 is about 47123.9318181325. The cubic root of 2220664950 is about 1304.6509834258.

The spelling of 2220664950 in words is "two billion, two hundred twenty million, six hundred sixty-four thousand, nine hundred fifty".