10661613 has 8 divisors (see below), whose sum is σ = 14674176. Its totient is φ = 6878400.

The previous prime is 10661611. The next prime is 10661653. The reversal of 10661613 is 31616601.

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

It is not a de Polignac number, because 10661613 - 2¹ = 10661611 is a prime.

It is a super-2 number, since 2×10661613² = 227339983523538, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10661611) 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, 57228 + ... + 57413.

It is an arithmetic number, because the mean of its divisors is an integer number (1834272).

Almost surely, 2^10661613 is an apocalyptic number.

It is an amenable number.

10661613 is a deficient number, since it is larger than the sum of its proper divisors (4012563).

10661613 is a wasteful number, since it uses less digits than its factorization.

10661613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114675.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 10661613 is about 3265.2125505088. The cubic root of 10661613 is about 220.0937135187.

The spelling of 10661613 in words is "ten million, six hundred sixty-one thousand, six hundred thirteen".