6406634334540 has 96 divisors (see below), whose sum is σ = 19985725154304. Its totient is φ = 1520078287360.

The previous prime is 6406634334473. The next prime is 6406634334563. The reversal of 6406634334540 is 454334366046.

It is a self number, because there is not a number n which added to its sum of digits gives 6406634334540.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103235169 + ... + 103297208.

It is an arithmetic number, because the mean of its divisors is an integer number (208184637024).

Almost surely, 2^{6406634334540} is an apocalyptic number.

6406634334540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6406634334540 is an abundant number, since it is smaller than the sum of its proper divisors (13579090819764).

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

6406634334540 is a wasteful number, since it uses less digits than its factorization.

6406634334540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206532447 (or 206532445 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 48.

The spelling of 6406634334540 in words is "six trillion, four hundred six billion, six hundred thirty-four million, three hundred thirty-four thousand, five hundred forty".