2661406432 has 24 divisors (see below), whose sum is σ = 5367442752. Its totient is φ = 1298246400.

The previous prime is 2661406421. The next prime is 2661406441. The reversal of 2661406432 is 2346041662.

2661406432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1012944 + ... + 1015567.

It is an arithmetic number, because the mean of its divisors is an integer number (223643448).

Almost surely, 2^2661406432 is an apocalyptic number.

It is an amenable number.

2661406432 is an abundant number, since it is smaller than the sum of its proper divisors (2706036320).

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

2661406432 is a wasteful number, since it uses less digits than its factorization.

2661406432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028562 (or 2028554 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 2661406432 is about 51588.8208045115. The cubic root of 2661406432 is about 1385.8101377481.

The spelling of 2661406432 in words is "two billion, six hundred sixty-one million, four hundred six thousand, four hundred thirty-two".