10394661956556 has 24 divisors (see below), whose sum is σ = 24291015819840. Its totient is φ = 3459629520592.

The previous prime is 10394661956551. The next prime is 10394661956563. The reversal of 10394661956556 is 65565916649301.

It is a super-2 number, since 2×10394661956556² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (10394661956551) by changing a digit.

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, 657216546 + ... + 657232361.

It is an arithmetic number, because the mean of its divisors is an integer number (1012125659160).

Almost surely, 2^{10394661956556} is an apocalyptic number.

It is an amenable number.

10394661956556 is an abundant number, since it is smaller than the sum of its proper divisors (13896353863284).

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

10394661956556 is a wasteful number, since it uses less digits than its factorization.

10394661956556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314449573 (or 1314449571 counting only the distinct ones).

The product of its (nonzero) digits is 157464000, while the sum is 66.

The spelling of 10394661956556 in words is "ten trillion, three hundred ninety-four billion, six hundred sixty-one million, nine hundred fifty-six thousand, five hundred fifty-six".