64567198442 has 8 divisors (see below), whose sum is σ = 96900959232. Its totient is φ = 32266878700.

The previous prime is 64567198439. The next prime is 64567198447. The reversal of 64567198442 is 24489176546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×64567198442² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64567198447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8355434 + ... + 8363157.

It is an arithmetic number, because the mean of its divisors is an integer number (12112619904).

Almost surely, 2^64567198442 is an apocalyptic number.

64567198442 is a deficient number, since it is larger than the sum of its proper divisors (32333760790).

64567198442 is a wasteful number, since it uses less digits than its factorization.

64567198442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16720524.

The product of its digits is 11612160, while the sum is 56.

The spelling of 64567198442 in words is "sixty-four billion, five hundred sixty-seven million, one hundred ninety-eight thousand, four hundred forty-two".