1660315456 has 56 divisors (see below), whose sum is σ = 3474171360. Its totient is φ = 785088000.

The previous prime is 1660315451. The next prime is 1660315457. The reversal of 1660315456 is 6545130661.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660315451) 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, 1143531 + ... + 1144981.

Almost surely, 2^1660315456 is an apocalyptic number.

1660315456 is a gapful number since it is divisible by the number (16) 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 1660315456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1737085680).

1660315456 is an abundant number, since it is smaller than the sum of its proper divisors (1813855904).

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

1660315456 is a wasteful number, since it uses less digits than its factorization.

1660315456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423 (or 2413 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 1660315456 is about 40746.9686725283. The cubic root of 1660315456 is about 1184.1231458230.

The spelling of 1660315456 in words is "one billion, six hundred sixty million, three hundred fifteen thousand, four hundred fifty-six".