64102645645 has 8 divisors (see below), whose sum is σ = 80971763040. Its totient is φ = 48583057680.

The previous prime is 64102645591. The next prime is 64102645661. The reversal of 64102645645 is 54654620146.

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

It is not a de Polignac number, because 64102645645 - 2¹³ = 64102637453 is a prime.

It is a super-3 number, since 3×64102645645³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337382251 + ... + 337382440.

It is an arithmetic number, because the mean of its divisors is an integer number (10121470380).

Almost surely, 2^64102645645 is an apocalyptic number.

It is an amenable number.

64102645645 is a deficient number, since it is larger than the sum of its proper divisors (16869117395).

64102645645 is a wasteful number, since it uses less digits than its factorization.

64102645645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674764715.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 64102645645 in words is "sixty-four billion, one hundred two million, six hundred forty-five thousand, six hundred forty-five".