2616445260 has 384 divisors, whose sum is σ = 9880657920. Its totient is φ = 566092800.

The previous prime is 2616445189. The next prime is 2616445277. The reversal of 2616445260 is 625446162.

2616445260 is a `hidden beast` number, since 2 + 6 + 1 + 644 + 5 + 2 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2393274 + ... + 2394366.

It is an arithmetic number, because the mean of its divisors is an integer number (25730880).

Almost surely, 2^2616445260 is an apocalyptic number.

2616445260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2616445260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4940328960).

2616445260 is an abundant number, since it is smaller than the sum of its proper divisors (7264212660).

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

2616445260 is a wasteful number, since it uses less digits than its factorization.

2616445260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 2616445260 is about 51151.1999859241. The cubic root of 2616445260 is about 1377.9619253567.

The spelling of 2616445260 in words is "two billion, six hundred sixteen million, four hundred forty-five thousand, two hundred sixty".