10656120290 has 8 divisors (see below), whose sum is σ = 19181016540. Its totient is φ = 4262448112.

The previous prime is 10656120289. The next prime is 10656120301. The reversal of 10656120290 is 9202165601.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9978611449 + 677508841 = 99893^2 + 26029^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10656120290² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532806005 + ... + 532806024.

Almost surely, 2^10656120290 is an apocalyptic number.

10656120290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10656120290 is a deficient number, since it is larger than the sum of its proper divisors (8524896250).

10656120290 is a wasteful number, since it uses less digits than its factorization.

10656120290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065612036.

The product of its (nonzero) digits is 6480, while the sum is 32.

Adding to 10656120290 its reverse (9202165601), we get a palindrome (19858285891).

The spelling of 10656120290 in words is "ten billion, six hundred fifty-six million, one hundred twenty thousand, two hundred ninety".