145552544199 has 24 divisors (see below), whose sum is σ = 223499156400. Its totient is φ = 91017734400.

The previous prime is 145552544177. The next prime is 145552544209. The reversal of 145552544199 is 991445255541.

145552544199 is a `hidden beast` number, since 1 + 4 + 5 + 5 + 5 + 2 + 544 + 1 + 99 = 666.

It is not a de Polignac number, because 145552544199 - 2¹⁵ = 145552511431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145552544299) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4196514 + ... + 4231055.

It is an arithmetic number, because the mean of its divisors is an integer number (9312464850).

Almost surely, 2^145552544199 is an apocalyptic number.

145552544199 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

145552544199 is a deficient number, since it is larger than the sum of its proper divisors (77946612201).

145552544199 is a wasteful number, since it uses less digits than its factorization.

145552544199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8427695 (or 8427692 counting only the distinct ones).

The product of its digits is 6480000, while the sum is 54.

The spelling of 145552544199 in words is "one hundred forty-five billion, five hundred fifty-two million, five hundred forty-four thousand, one hundred ninety-nine".