160694909440 has 80 divisors (see below), whose sum is σ = 414929020968. Its totient is φ = 59333492736.

The previous prime is 160694909437. The next prime is 160694909449. The reversal of 160694909440 is 44909496061.

It can be written as a sum of positive squares in 4 ways, for example, as 147960238336 + 12734671104 = 384656^2 + 112848^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×160694909440² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (160694909449) 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, 2381007 + ... + 2447566.

Almost surely, 2^160694909440 is an apocalyptic number.

160694909440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

160694909440 is an abundant number, since it is smaller than the sum of its proper divisors (254234111528).

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

160694909440 is an equidigital number, since it uses as much as digits as its factorization.

160694909440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4828609 (or 4828593 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 160694909440 in words is "one hundred sixty billion, six hundred ninety-four million, nine hundred nine thousand, four hundred forty".