2606145880 has 64 divisors (see below), whose sum is σ = 6403924800. Its totient is φ = 948702720.

The previous prime is 2606145877. The next prime is 2606145901. The reversal of 2606145880 is 885416062.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

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, 1626 + ... + 72214.

It is an arithmetic number, because the mean of its divisors is an integer number (100061325).

Almost surely, 2^2606145880 is an apocalyptic number.

2606145880 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 2606145880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3201962400).

2606145880 is an abundant number, since it is smaller than the sum of its proper divisors (3797778920).

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

2606145880 is a wasteful number, since it uses less digits than its factorization.

2606145880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70684 (or 70680 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 2606145880 is about 51050.4248758029. The cubic root of 2606145880 is about 1376.1514770932.

The spelling of 2606145880 in words is "two billion, six hundred six million, one hundred forty-five thousand, eight hundred eighty".