145206563499 has 12 divisors (see below), whose sum is σ = 209896264656. Its totient is φ = 96733552272.

The previous prime is 145206563461. The next prime is 145206563533. The reversal of 145206563499 is 994365602541.

145206563499 is a `hidden beast` number, since 1 + 45 + 206 + 56 + 349 + 9 = 666.

It is not a de Polignac number, because 145206563499 - 2⁷ = 145206563371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145206568499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5888964 + ... + 5913569.

It is an arithmetic number, because the mean of its divisors is an integer number (17491355388).

Almost surely, 2^145206563499 is an apocalyptic number.

145206563499 is a deficient number, since it is larger than the sum of its proper divisors (64689701157).

145206563499 is a wasteful number, since it uses less digits than its factorization.

145206563499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11803906 (or 11803903 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 54.

The spelling of 145206563499 in words is "one hundred forty-five billion, two hundred six million, five hundred sixty-three thousand, four hundred ninety-nine".