10656101561 has 16 divisors (see below), whose sum is σ = 12287723520. Its totient is φ = 9052177680.

The previous prime is 10656101543. The next prime is 10656101563. The reversal of 10656101561 is 16510165601.

It is not a de Polignac number, because 10656101561 - 2²⁶ = 10588992697 is a prime.

It is a super-2 number, since 2×10656101561² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10656101563) 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 15 ways as a sum of consecutive naturals, for example, 337910 + ... + 368096.

It is an arithmetic number, because the mean of its divisors is an integer number (767982720).

Almost surely, 2^10656101561 is an apocalyptic number.

It is an amenable number.

10656101561 is a deficient number, since it is larger than the sum of its proper divisors (1631621959).

10656101561 is a wasteful number, since it uses less digits than its factorization.

10656101561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30644.

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 10656101561 in words is "ten billion, six hundred fifty-six million, one hundred one thousand, five hundred sixty-one".