32155045440 has 224 divisors, whose sum is σ = 116830571520. Its totient is φ = 7340046336.

The previous prime is 32155045423. The next prime is 32155045451. The reversal of 32155045440 is 4454055123.

It is a tau number, because it is divible by the number of its divisors (224).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5931051 + ... + 5936469.

Almost surely, 2^32155045440 is an apocalyptic number.

32155045440 is a gapful number since it is divisible by the number (30) 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 32155045440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58415285760).

32155045440 is an abundant number, since it is smaller than the sum of its proper divisors (84675526080).

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

32155045440 is a wasteful number, since it uses less digits than its factorization.

32155045440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6329 (or 6319 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 32155045440 in words is "thirty-two billion, one hundred fifty-five million, forty-five thousand, four hundred forty".