667095988950 has 480 divisors, whose sum is σ = 1950740858880. Its totient is φ = 168825254400.

The previous prime is 667095988939. The next prime is 667095988963. The reversal of 667095988950 is 59889590766.

667095988950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 2536486519 + ... + 2536486781.

It is an arithmetic number, because the mean of its divisors is an integer number (4064043456).

Almost surely, 2^667095988950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 667095988950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (975370429440).

667095988950 is an abundant number, since it is smaller than the sum of its proper divisors (1283644869930).

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

667095988950 is a wasteful number, since it uses less digits than its factorization.

667095988950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 293932800, while the sum is 72.

The spelling of 667095988950 in words is "six hundred sixty-seven billion, ninety-five million, nine hundred eighty-eight thousand, nine hundred fifty".