67245308221 has 48 divisors (see below), whose sum is σ = 87055288320. Its totient is φ = 51431708160.

The previous prime is 67245308213. The next prime is 67245308237. The reversal of 67245308221 is 12280354276.

It is not a de Polignac number, because 67245308221 - 2³ = 67245308213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67245308201) 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, 29402140 + ... + 29404426.

It is an arithmetic number, because the mean of its divisors is an integer number (1813651840).

Almost surely, 2^67245308221 is an apocalyptic number.

It is an amenable number.

67245308221 is a deficient number, since it is larger than the sum of its proper divisors (19809980099).

67245308221 is a wasteful number, since it uses less digits than its factorization.

67245308221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3834 (or 3827 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 67245308221 in words is "sixty-seven billion, two hundred forty-five million, three hundred eight thousand, two hundred twenty-one".