2661513460 has 24 divisors (see below), whose sum is σ = 5590156320. Its totient is φ = 1064419104.

The previous prime is 2661513457. The next prime is 2661513469. The reversal of 2661513460 is 643151662.

It is a super-2 number, since 2×2661513460² = 14167307795522343200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661513469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194731 + ... + 207949.

It is an arithmetic number, because the mean of its divisors is an integer number (232923180).

Almost surely, 2^2661513460 is an apocalyptic number.

2661513460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2661513460 is an abundant number, since it is smaller than the sum of its proper divisors (2928642860).

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

2661513460 is a wasteful number, since it uses less digits than its factorization.

2661513460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23295 (or 23293 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 2661513460 is about 51589.8581118421. The cubic root of 2661513460 is about 1385.8287142042.

The spelling of 2661513460 in words is "two billion, six hundred sixty-one million, five hundred thirteen thousand, four hundred sixty".