16642461 has 36 divisors (see below), whose sum is σ = 25944576. Its totient is φ = 9480240.

The previous prime is 16642453. The next prime is 16642469. The reversal of 16642461 is 16424661.

It is an interprime number because it is at equal distance from previous prime (16642453) and next prime (16642469).

It is not a de Polignac number, because 16642461 - 2³ = 16642453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16642469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 130980 + ... + 131106.

Almost surely, 2^16642461 is an apocalyptic number.

16642461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16642461 is a deficient number, since it is larger than the sum of its proper divisors (9302115).

16642461 is a wasteful number, since it uses less digits than its factorization.

16642461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 160 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 16642461 is about 4079.5172508521. The cubic root of 16642461 is about 255.3127573461.

The spelling of 16642461 in words is "sixteen million, six hundred forty-two thousand, four hundred sixty-one".