21160146120 has 128 divisors (see below), whose sum is σ = 64922135040. Its totient is φ = 5515361280.

The previous prime is 21160146107. The next prime is 21160146149. The reversal of 21160146120 is 2164106112.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1717422 + ... + 1729698.

It is an arithmetic number, because the mean of its divisors is an integer number (507204180).

Almost surely, 2^21160146120 is an apocalyptic number.

21160146120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21160146120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32461067520).

21160146120 is an abundant number, since it is smaller than the sum of its proper divisors (43761988920).

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

21160146120 is a wasteful number, since it uses less digits than its factorization.

21160146120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12615 (or 12611 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The spelling of 21160146120 in words is "twenty-one billion, one hundred sixty million, one hundred forty-six thousand, one hundred twenty".