10561956178 has 8 divisors (see below), whose sum is σ = 16531757568. Its totient is φ = 5051370324.

The previous prime is 10561956131. The next prime is 10561956187. The reversal of 10561956178 is 87165916501.

It is a happy number.

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

It is a super-2 number, since 2×10561956178² (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, 114803826 + ... + 114803917.

It is an arithmetic number, because the mean of its divisors is an integer number (2066469696).

Almost surely, 2^10561956178 is an apocalyptic number.

10561956178 is a deficient number, since it is larger than the sum of its proper divisors (5969801390).

10561956178 is a wasteful number, since it uses less digits than its factorization.

10561956178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229607768.

The product of its (nonzero) digits is 453600, while the sum is 49.

The spelling of 10561956178 in words is "ten billion, five hundred sixty-one million, nine hundred fifty-six thousand, one hundred seventy-eight".