10656212550621 has 8 divisors (see below), whose sum is σ = 15499945528224. Its totient is φ = 6458310636720.

The previous prime is 10656212550617. The next prime is 10656212550629. The reversal of 10656212550621 is 12605521265601.

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

It is not a de Polignac number, because 10656212550621 - 2² = 10656212550617 is a prime.

It is a super-2 number, since 2×10656212550621² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10656212550629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161457765886 + ... + 161457765951.

It is an arithmetic number, because the mean of its divisors is an integer number (1937493191028).

Almost surely, 2^{10656212550621} is an apocalyptic number.

10656212550621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10656212550621 is a deficient number, since it is larger than the sum of its proper divisors (4843732977603).

10656212550621 is a wasteful number, since it uses less digits than its factorization.

10656212550621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322915531851.

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 10656212550621 in words is "ten trillion, six hundred fifty-six billion, two hundred twelve million, five hundred fifty thousand, six hundred twenty-one".