1045649559956 has 24 divisors (see below), whose sum is σ = 1834348311936. Its totient is φ = 521551584000.

The previous prime is 1045649559943. The next prime is 1045649559967. The reversal of 1045649559956 is 6599559465401.

It is a super-3 number, since 3×1045649559956³ (a number of 37 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2532740 + ... + 2916516.

It is an arithmetic number, because the mean of its divisors is an integer number (76431179664).

Almost surely, 2^{1045649559956} is an apocalyptic number.

It is an amenable number.

1045649559956 is a deficient number, since it is larger than the sum of its proper divisors (788698751980).

1045649559956 is a wasteful number, since it uses less digits than its factorization.

1045649559956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385439 (or 385437 counting only the distinct ones).

The product of its (nonzero) digits is 262440000, while the sum is 68.

The spelling of 1045649559956 in words is "one trillion, forty-five billion, six hundred forty-nine million, five hundred fifty-nine thousand, nine hundred fifty-six".