67432018416 has 160 divisors (see below), whose sum is σ = 204251593728. Its totient is φ = 18767738880.

The previous prime is 67432018411. The next prime is 67432018427. The reversal of 67432018416 is 61481023476.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67432018411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10011786 + ... + 10018518.

Almost surely, 2^67432018416 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 67432018416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102125796864).

67432018416 is an abundant number, since it is smaller than the sum of its proper divisors (136819575312).

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

67432018416 is a wasteful number, since it uses less digits than its factorization.

67432018416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7519 (or 7513 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 67432018416 in words is "sixty-seven billion, four hundred thirty-two million, eighteen thousand, four hundred sixteen".