10601661 has 16 divisors (see below), whose sum is σ = 16257024. Its totient is φ = 6019824.

The previous prime is 10601653. The next prime is 10601663. The reversal of 10601661 is 16610601.

10601661 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10601661 - 2³ = 10601653 is a prime.

It is a super-2 number, since 2×10601661² = 224790431917842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10601663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1996 + ... + 5018.

It is an arithmetic number, because the mean of its divisors is an integer number (1016064).

Almost surely, 2^10601661 is an apocalyptic number.

It is an amenable number.

10601661 is a deficient number, since it is larger than the sum of its proper divisors (5655363).

10601661 is a wasteful number, since it uses less digits than its factorization.

10601661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 10601661 is about 3256.0191952751. The cubic root of 10601661 is about 219.6803968055.

The spelling of 10601661 in words is "ten million, six hundred one thousand, six hundred sixty-one".