1264550225406 has 64 divisors (see below), whose sum is σ = 2735142778368. Its totient is φ = 387451317888.

The previous prime is 1264550225383. The next prime is 1264550225417. The reversal of 1264550225406 is 6045220554621.

It is a happy number.

It is a super-3 number, since 3×1264550225406³ (a number of 37 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

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, 54904465 + ... + 54927491.

It is an arithmetic number, because the mean of its divisors is an integer number (42736605912).

Almost surely, 2^{1264550225406} is an apocalyptic number.

1264550225406 is an abundant number, since it is smaller than the sum of its proper divisors (1470592552962).

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

1264550225406 is a wasteful number, since it uses less digits than its factorization.

1264550225406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25985.

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 1264550225406 in words is "one trillion, two hundred sixty-four billion, five hundred fifty million, two hundred twenty-five thousand, four hundred six".