1264531256006 has 16 divisors (see below), whose sum is σ = 1932676444944. Its totient is φ = 620306897184.

The previous prime is 1264531255973. The next prime is 1264531256077. The reversal of 1264531256006 is 6006521354621.

It is a happy number.

It is a super-2 number, since 2×1264531256006² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2075420 + ... + 2614656.

It is an arithmetic number, because the mean of its divisors is an integer number (120792277809).

Almost surely, 2^{1264531256006} is an apocalyptic number.

1264531256006 is a deficient number, since it is larger than the sum of its proper divisors (668145188938).

1264531256006 is a wasteful number, since it uses less digits than its factorization.

1264531256006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561415.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 1264531256006 in words is "one trillion, two hundred sixty-four billion, five hundred thirty-one million, two hundred fifty-six thousand, six".