145618515199 has 8 divisors (see below), whose sum is σ = 145931771952. Its totient is φ = 145305572160.

The previous prime is 145618515181. The next prime is 145618515209. The reversal of 145618515199 is 991515816541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145618515199 - 2¹¹ = 145618513151 is a prime.

It is a super-2 number, since 2×145618515199² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145618515139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 863019 + ... + 1017859.

It is an arithmetic number, because the mean of its divisors is an integer number (18241471494).

Almost surely, 2^145618515199 is an apocalyptic number.

145618515199 is a deficient number, since it is larger than the sum of its proper divisors (313256753).

145618515199 is a wasteful number, since it uses less digits than its factorization.

145618515199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156857.

The product of its digits is 1944000, while the sum is 55.

It can be divided in two parts, 1456 and 18515199, that added together give a triangular number (18516655 = T₆₀₈₅).

The spelling of 145618515199 in words is "one hundred forty-five billion, six hundred eighteen million, five hundred fifteen thousand, one hundred ninety-nine".