2606992560 has 80 divisors (see below), whose sum is σ = 8979648480. Its totient is φ = 695197440.

The previous prime is 2606992543. The next prime is 2606992561. The reversal of 2606992560 is 652996062.

2606992560 is a `hidden beast` number, since 26 + 0 + 69 + 9 + 2 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2606992561) 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, 601311 + ... + 605630.

It is an arithmetic number, because the mean of its divisors is an integer number (112245606).

Almost surely, 2^2606992560 is an apocalyptic number.

2606992560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2606992560 is an abundant number, since it is smaller than the sum of its proper divisors (6372655920).

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

2606992560 is a wasteful number, since it uses less digits than its factorization.

2606992560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206963 (or 1206951 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 2606992560 is about 51058.7167876358. The cubic root of 2606992560 is about 1376.3004881655.

The spelling of 2606992560 in words is "two billion, six hundred six million, nine hundred ninety-two thousand, five hundred sixty".