1618048672320 has 224 divisors, whose sum is σ = 5234397797376. Its totient is φ = 423382579200.

The previous prime is 1618048672307. The next prime is 1618048672433. The reversal of 1618048672320 is 232768408161.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1618048672320.

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, 14325507 + ... + 14438013.

Almost surely, 2^{1618048672320} is an apocalyptic number.

1618048672320 is a gapful number since it is divisible by the number (10) 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 1618048672320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2617198898688).

1618048672320 is an abundant number, since it is smaller than the sum of its proper divisors (3616349125056).

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

1618048672320 is a wasteful number, since it uses less digits than its factorization.

1618048672320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112809 (or 112799 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 1618048672320 in words is "one trillion, six hundred eighteen billion, forty-eight million, six hundred seventy-two thousand, three hundred twenty".