1545222873600 has 1200 divisors, whose sum is σ = 6820890899328. Its totient is φ = 337801052160.

The previous prime is 1545222873547. The next prime is 1545222873613. The reversal of 1545222873600 is 63782225451.

1545222873600 is a `hidden beast` number, since 1 + 5 + 4 + 5 + 2 + 2 + 287 + 360 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1200).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 166920172 + ... + 166929428.

Almost surely, 2^{1545222873600} is an apocalyptic number.

1545222873600 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 1545222873600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3410445449664).

1545222873600 is an abundant number, since it is smaller than the sum of its proper divisors (5275668025728).

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

1545222873600 is an equidigital number, since it uses as much as digits as its factorization.

1545222873600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9327 (or 9297 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 1545222873600 in words is "one trillion, five hundred forty-five billion, two hundred twenty-two million, eight hundred seventy-three thousand, six hundred".