10661007 has 8 divisors (see below), whose sum is σ = 16245376. Its totient is φ = 6091992.

The previous prime is 10660999. The next prime is 10661011. The reversal of 10661007 is 70016601.

10661007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10661007 - 2³ = 10660999 is a prime.

It is a super-2 number, since 2×10661007² = 227314140508098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 507667 = 10661007 / (1 + 0 + 6 + 6 + 1 + 0 + 0 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10661087) 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, 253813 + ... + 253854.

It is an arithmetic number, because the mean of its divisors is an integer number (2030672).

Almost surely, 2^10661007 is an apocalyptic number.

10661007 is a deficient number, since it is larger than the sum of its proper divisors (5584369).

10661007 is an equidigital number, since it uses as much as digits as its factorization.

10661007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507677.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 10661007 is about 3265.1197527809. The cubic root of 10661007 is about 220.0895434393.

Adding to 10661007 its reverse (70016601), we get a palindrome (80677608).

The spelling of 10661007 in words is "ten million, six hundred sixty-one thousand, seven".