1613997960 has 64 divisors (see below), whose sum is σ = 4850064000. Its totient is φ = 429682176.

The previous prime is 1613997937. The next prime is 1613997961. The reversal of 1613997960 is 697993161.

It is a super-3 number, since 3×1613997960³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1613997961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63141 + ... + 84939.

It is an arithmetic number, because the mean of its divisors is an integer number (75782250).

Almost surely, 2^1613997960 is an apocalyptic number.

1613997960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1613997960 is an abundant number, since it is smaller than the sum of its proper divisors (3236066040).

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

1613997960 is a wasteful number, since it uses less digits than its factorization.

1613997960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22430 (or 22426 counting only the distinct ones).

The product of its (nonzero) digits is 551124, while the sum is 51.

The square root of 1613997960 is about 40174.5934640290. The cubic root of 1613997960 is about 1173.0080534126.

The spelling of 1613997960 in words is "one billion, six hundred thirteen million, nine hundred ninety-seven thousand, nine hundred sixty".