662160540 has 96 divisors (see below), whose sum is σ = 1996565760. Its totient is φ = 163357696.

The previous prime is 662160539. The next prime is 662160563. The reversal of 662160540 is 45061266.

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

It is a junction number, because it is equal to n+sod(n) for n = 662160498 and 662160507.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 54679 + ... + 65681.

It is an arithmetic number, because the mean of its divisors is an integer number (20797560).

Almost surely, 2^662160540 is an apocalyptic number.

662160540 is a gapful number since it is divisible by the number (60) 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 662160540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (998282880).

662160540 is an abundant number, since it is smaller than the sum of its proper divisors (1334405220).

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

662160540 is a wasteful number, since it uses less digits than its factorization.

662160540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11091 (or 11089 counting only the distinct ones).

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

The square root of 662160540 is about 25732.4802535628. The cubic root of 662160540 is about 871.6077813433.

It can be divided in two parts, 6621 and 60540, that added together give a triangular number (67161 = T₃₆₆).

The spelling of 662160540 in words is "six hundred sixty-two million, one hundred sixty thousand, five hundred forty".