229178652056640 has 1344 divisors, whose sum is σ = 975378406993920. Its totient is φ = 50193403453440.

The previous prime is 229178652056623. The next prime is 229178652056671. The reversal of 229178652056640 is 46650256871922.

229178652056640 is a `hidden beast` number, since 2 + 2 + 9 + 1 + 7 + 8 + 6 + 5 + 20 + 566 + 40 = 666.

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, 754750927 + ... + 755054513.

Almost surely, 2^{229178652056640} is an apocalyptic number.

229178652056640 is a gapful number since it is divisible by the number (20) 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 229178652056640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487689203496960).

229178652056640 is an abundant number, since it is smaller than the sum of its proper divisors (746199754937280).

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

229178652056640 is a wasteful number, since it uses less digits than its factorization.

229178652056640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303697 (or 303668 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 63.

The spelling of 229178652056640 in words is "two hundred twenty-nine trillion, one hundred seventy-eight billion, six hundred fifty-two million, fifty-six thousand, six hundred forty".