145305213663615 has 32 divisors (see below), whose sum is σ = 233029180552896. Its totient is φ = 77315840409600.

The previous prime is 145305213663541. The next prime is 145305213663637. The reversal of 145305213663615 is 516366312503541.

145305213663615 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145305213663615 - 2⁸ = 145305213663359 is a prime.

It is a super-2 number, since 2×145305213663615² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 481628815 + ... + 481930415.

It is an arithmetic number, because the mean of its divisors is an integer number (7282161892278).

Almost surely, 2^{145305213663615} is an apocalyptic number.

145305213663615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145305213663615 is a deficient number, since it is larger than the sum of its proper divisors (87723966889281).

145305213663615 is a wasteful number, since it uses less digits than its factorization.

145305213663615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376219.

The product of its (nonzero) digits is 5832000, while the sum is 51.

The spelling of 145305213663615 in words is "one hundred forty-five trillion, three hundred five billion, two hundred thirteen million, six hundred sixty-three thousand, six hundred fifteen".