2521366366 has 16 divisors (see below), whose sum is σ = 3796222464. Its totient is φ = 1255967104.

The previous prime is 2521366363. The next prime is 2521366387. The reversal of 2521366366 is 6636631252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521366363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1096530 + ... + 1098826.

It is an arithmetic number, because the mean of its divisors is an integer number (237263904).

Almost surely, 2^2521366366 is an apocalyptic number.

2521366366 is a deficient number, since it is larger than the sum of its proper divisors (1274856098).

2521366366 is a wasteful number, since it uses less digits than its factorization.

2521366366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115.

The product of its digits is 233280, while the sum is 40.

The square root of 2521366366 is about 50213.2090788868. The cubic root of 2521366366 is about 1361.0643279619.

The spelling of 2521366366 in words is "two billion, five hundred twenty-one million, three hundred sixty-six thousand, three hundred sixty-six".