4971565980640 has 96 divisors (see below), whose sum is σ = 13553551065600. Its totient is φ = 1687987966464.

The previous prime is 4971565980593. The next prime is 4971565980649. The reversal of 4971565980640 is 460895651794.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4971565980649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21432690 + ... + 21663409.

It is an arithmetic number, because the mean of its divisors is an integer number (141182823600).

Almost surely, 2^{4971565980640} is an apocalyptic number.

4971565980640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4971565980640 is an abundant number, since it is smaller than the sum of its proper divisors (8581985084960).

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

4971565980640 is a wasteful number, since it uses less digits than its factorization.

4971565980640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43096224 (or 43096216 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 64.

The spelling of 4971565980640 in words is "four trillion, nine hundred seventy-one billion, five hundred sixty-five million, nine hundred eighty thousand, six hundred forty".