7720616580 has 48 divisors (see below), whose sum is σ = 21674829120. Its totient is φ = 2053392768.

The previous prime is 7720616573. The next prime is 7720616593. The reversal of 7720616580 is 856160277.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147019 + ... + 192498.

It is an arithmetic number, because the mean of its divisors is an integer number (451558940).

Almost surely, 2^7720616580 is an apocalyptic number.

It is an amenable number.

7720616580 is an abundant number, since it is smaller than the sum of its proper divisors (13954212540).

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

7720616580 is a wasteful number, since it uses less digits than its factorization.

7720616580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339908 (or 339906 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 7720616580 is about 87867.0392126650. The cubic root of 7720616580 is about 1976.4416397310.

The spelling of 7720616580 in words is "seven billion, seven hundred twenty million, six hundred sixteen thousand, five hundred eighty".