660144046 has 16 divisors (see below), whose sum is σ = 1013601600. Its totient is φ = 322309120.

The previous prime is 660144031. The next prime is 660144049. The reversal of 660144046 is 640441066.

It is a super-2 number, since 2×660144046² = 871580322938500232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 660143999 and 660144017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660144049) 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, 34386 + ... + 50026.

It is an arithmetic number, because the mean of its divisors is an integer number (63350100).

Almost surely, 2^660144046 is an apocalyptic number.

660144046 is a deficient number, since it is larger than the sum of its proper divisors (353457554).

660144046 is a wasteful number, since it uses less digits than its factorization.

660144046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16139.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 660144046 is about 25693.2684958532. The cubic root of 660144046 is about 870.7221053750.

The spelling of 660144046 in words is "six hundred sixty million, one hundred forty-four thousand, forty-six".