10556621354 has 8 divisors (see below), whose sum is σ = 16380964260. Its totient is φ = 5096299936.

The previous prime is 10556621353. The next prime is 10556621357. The reversal of 10556621354 is 45312665501.

It can be written as a sum of positive squares in 2 ways, for example, as 10531890625 + 24730729 = 102625^2 + 4973^2 .

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

It is a super-2 number, since 2×10556621354² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10556621353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91005299 + ... + 91005414.

Almost surely, 2^10556621354 is an apocalyptic number.

10556621354 is a deficient number, since it is larger than the sum of its proper divisors (5824342906).

10556621354 is a wasteful number, since it uses less digits than its factorization.

10556621354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182010744.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 10556621354 in words is "ten billion, five hundred fifty-six million, six hundred twenty-one thousand, three hundred fifty-four".