7566020616 has 144 divisors (see below), whose sum is σ = 24185815920. Its totient is φ = 1965163200.

The previous prime is 7566020603. The next prime is 7566020621. The reversal of 7566020616 is 6160206657.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 115711 + ... + 168881.

It is an arithmetic number, because the mean of its divisors is an integer number (167957055).

Almost surely, 2^7566020616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7566020616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12092907960).

7566020616 is an abundant number, since it is smaller than the sum of its proper divisors (16619795304).

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

7566020616 is a wasteful number, since it uses less digits than its factorization.

7566020616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53216 (or 53194 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 7566020616 is about 86982.8754180959. The cubic root of 7566020616 is about 1963.1606487736.

The spelling of 7566020616 in words is "seven billion, five hundred sixty-six million, twenty thousand, six hundred sixteen".