10491655392 has 72 divisors (see below), whose sum is σ = 30018820104. Its totient is φ = 3475747584.

The previous prime is 10491655387. The next prime is 10491655393. The reversal of 10491655392 is 29355619401.

10491655392 is a `hidden beast` number, since 1 + 0 + 4 + 9 + 1 + 6 + 553 + 92 = 666.

10491655392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×10491655392² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10491655393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64803 + ... + 158690.

It is an arithmetic number, because the mean of its divisors is an integer number (416928057).

Almost surely, 2^10491655392 is an apocalyptic number.

10491655392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10491655392 is an abundant number, since it is smaller than the sum of its proper divisors (19527164712).

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

10491655392 is a wasteful number, since it uses less digits than its factorization.

10491655392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223672 (or 223661 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 10491655392 in words is "ten billion, four hundred ninety-one million, six hundred fifty-five thousand, three hundred ninety-two".