659406425216 has 256 divisors, whose sum is σ = 1769566176000. Its totient is φ = 241796136960.

The previous prime is 659406425191. The next prime is 659406425221. The reversal of 659406425216 is 612524604956.

It is a happy number.

It is a super-2 number, since 2×659406425216² (a number of 24 digits) contains 22 as substring.

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, 8169890 + ... + 8250206.

It is an arithmetic number, because the mean of its divisors is an integer number (6912367875).

Almost surely, 2^659406425216 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 659406425216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (884783088000).

659406425216 is an abundant number, since it is smaller than the sum of its proper divisors (1110159750784).

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

659406425216 is a wasteful number, since it uses less digits than its factorization.

659406425216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80380 (or 80354 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 659406425216 in words is "six hundred fifty-nine billion, four hundred six million, four hundred twenty-five thousand, two hundred sixteen".