2566401510 has 64 divisors (see below), whose sum is σ = 6307891200. Its totient is φ = 668004480.

The previous prime is 2566401503. The next prime is 2566401547. The reversal of 2566401510 is 151046652.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 312355 + ... + 320465.

It is an arithmetic number, because the mean of its divisors is an integer number (98560800).

Almost surely, 2^2566401510 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2566401510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3153945600).

2566401510 is an abundant number, since it is smaller than the sum of its proper divisors (3741489690).

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

2566401510 is a wasteful number, since it uses less digits than its factorization.

2566401510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8373.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 2566401510 is about 50659.6635401381. The cubic root of 2566401510 is about 1369.1200611540.

The spelling of 2566401510 in words is "two billion, five hundred sixty-six million, four hundred one thousand, five hundred ten".