64335616242 has 16 divisors (see below), whose sum is σ = 128711218752. Its totient is φ = 21438541040.

The previous prime is 64335616223. The next prime is 64335616249. The reversal of 64335616242 is 24261653346.

It is a happy number.

It is a super-3 number, since 3×64335616242³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64335616194 and 64335616203.

It is not an unprimeable number, because it can be changed into a prime (64335616249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1645158 + ... + 1683809.

It is an arithmetic number, because the mean of its divisors is an integer number (8044451172).

Almost surely, 2^64335616242 is an apocalyptic number.

64335616242 is an abundant number, since it is smaller than the sum of its proper divisors (64375602510).

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

64335616242 is a wasteful number, since it uses less digits than its factorization.

64335616242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332193.

The product of its digits is 622080, while the sum is 42.

The spelling of 64335616242 in words is "sixty-four billion, three hundred thirty-five million, six hundred sixteen thousand, two hundred forty-two".