67315565952 has 384 divisors, whose sum is σ = 203819353920. Its totient is φ = 21307392000.

The previous prime is 67315565929. The next prime is 67315565959. The reversal of 67315565952 is 25956551376.

67315565952 is a `hidden beast` number, since 6 + 7 + 31 + 556 + 5 + 9 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67315565959) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 491354428 + ... + 491354564.

Almost surely, 2^67315565952 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 67315565952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101909676960).

67315565952 is an abundant number, since it is smaller than the sum of its proper divisors (136503787968).

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

67315565952 is a wasteful number, since it uses less digits than its factorization.

67315565952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402 (or 387 counting only the distinct ones).

The product of its digits is 8505000, while the sum is 54.

The spelling of 67315565952 in words is "sixty-seven billion, three hundred fifteen million, five hundred sixty-five thousand, nine hundred fifty-two".