10542505661 has 8 divisors (see below), whose sum is σ = 11108137920. Its totient is φ = 9977949792.

The previous prime is 10542505643. The next prime is 10542505667. The reversal of 10542505661 is 16650524501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10542505661 is a prime.

It is a super-2 number, since 2×10542505661² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10542505667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248945 + ... + 288198.

It is an arithmetic number, because the mean of its divisors is an integer number (1388517240).

Almost surely, 2^10542505661 is an apocalyptic number.

It is an amenable number.

10542505661 is a deficient number, since it is larger than the sum of its proper divisors (565632259).

10542505661 is a wasteful number, since it uses less digits than its factorization.

10542505661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538195.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 10542505661 in words is "ten billion, five hundred forty-two million, five hundred five thousand, six hundred sixty-one".