16121760 has 48 divisors (see below), whose sum is σ = 50785056. Its totient is φ = 4299008.

The previous prime is 16121759. The next prime is 16121779. The reversal of 16121760 is 6712161.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×16121760² = 519822290995200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 16121760.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16314 + ... + 17273.

It is an arithmetic number, because the mean of its divisors is an integer number (1058022).

Almost surely, 2^16121760 is an apocalyptic number.

16121760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16121760 is an abundant number, since it is smaller than the sum of its proper divisors (34663296).

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

16121760 is a wasteful number, since it uses less digits than its factorization.

16121760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33605 (or 33597 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 16121760 is about 4015.1911536065. The cubic root of 16121760 is about 252.6217953082.

The spelling of 16121760 in words is "sixteen million, one hundred twenty-one thousand, seven hundred sixty".