16542660 has 24 divisors (see below), whose sum is σ = 46319616. Its totient is φ = 4411360.

The previous prime is 16542641. The next prime is 16542661. The reversal of 16542660 is 6624561.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (16542661) 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, 137796 + ... + 137915.

It is an arithmetic number, because the mean of its divisors is an integer number (1929984).

Almost surely, 2^16542660 is an apocalyptic number.

16542660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16542660 is an abundant number, since it is smaller than the sum of its proper divisors (29776956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16542660 is a wasteful number, since it uses less digits than its factorization.

16542660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275723 (or 275721 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 16542660 is about 4067.2668955946. The cubic root of 16542660 is about 254.8013832097.

The spelling of 16542660 in words is "sixteen million, five hundred forty-two thousand, six hundred sixty".