145493311455 has 16 divisors (see below), whose sum is σ = 258654776160. Its totient is φ = 77596432704.

The previous prime is 145493311417. The next prime is 145493311463. The reversal of 145493311455 is 554113394541.

145493311455 is a `hidden beast` number, since 1 + 45 + 493 + 3 + 114 + 5 + 5 = 666.

It is not a de Polignac number, because 145493311455 - 2¹¹ = 145493309407 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 145493311455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 538863982 + ... + 538864251.

It is an arithmetic number, because the mean of its divisors is an integer number (16165923510).

Almost surely, 2^145493311455 is an apocalyptic number.

145493311455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145493311455 is a deficient number, since it is larger than the sum of its proper divisors (113161464705).

145493311455 is a wasteful number, since it uses less digits than its factorization.

145493311455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077728247 (or 1077728241 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The spelling of 145493311455 in words is "one hundred forty-five billion, four hundred ninety-three million, three hundred eleven thousand, four hundred fifty-five".