64104542506140 has 96 divisors (see below), whose sum is σ = 185284809400320. Its totient is φ = 16542928934400.

The previous prime is 64104542506097. The next prime is 64104542506157. The reversal of 64104542506140 is 4160524540146.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 64104542506092 and 64104542506101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 318258781 + ... + 318460139.

It is an arithmetic number, because the mean of its divisors is an integer number (1930050097920).

Almost surely, 2^{64104542506140} is an apocalyptic number.

64104542506140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64104542506140 is an abundant number, since it is smaller than the sum of its proper divisors (121180266894180).

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

64104542506140 is a wasteful number, since it uses less digits than its factorization.

64104542506140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372563 (or 372561 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 64104542506140 in words is "sixty-four trillion, one hundred four billion, five hundred forty-two million, five hundred six thousand, one hundred forty".