160638444400 has 90 divisors (see below), whose sum is σ = 448943527680. Its totient is φ = 55076031360.

The previous prime is 160638444397. The next prime is 160638444409. The reversal of 160638444400 is 4444836061.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160638444409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4078320 + ... + 4117519.

Almost surely, 2^160638444400 is an apocalyptic number.

160638444400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

160638444400 is an abundant number, since it is smaller than the sum of its proper divisors (288305083280).

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

160638444400 is a wasteful number, since it uses less digits than its factorization.

160638444400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8195871 (or 8195853 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 160638444400 in words is "one hundred sixty billion, six hundred thirty-eight million, four hundred forty-four thousand, four hundred".