64671201325 has 24 divisors (see below), whose sum is σ = 83008972800. Its totient is φ = 49921959360.

The previous prime is 64671201317. The next prime is 64671201347. The reversal of 64671201325 is 52310217646.

64671201325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64671201325 - 2³ = 64671201317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1178856 + ... + 1232494.

It is an arithmetic number, because the mean of its divisors is an integer number (3458707200).

Almost surely, 2^64671201325 is an apocalyptic number.

It is an amenable number.

64671201325 is a deficient number, since it is larger than the sum of its proper divisors (18337771475).

64671201325 is a wasteful number, since it uses less digits than its factorization.

64671201325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55341 (or 55336 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 64671201325 in words is "sixty-four billion, six hundred seventy-one million, two hundred one thousand, three hundred twenty-five".