145344403354645 has 16 divisors (see below), whose sum is σ = 192561435162432. Its totient is φ = 104431466152960.

The previous prime is 145344403354613. The next prime is 145344403354691. The reversal of 145344403354645 is 546453304443541.

It is not a de Polignac number, because 145344403354645 - 2⁵ = 145344403354613 is a prime.

It is a super-2 number, since 2×145344403354645² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

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, 15919426252 + ... + 15919435381.

It is an arithmetic number, because the mean of its divisors is an integer number (12035089697652).

Almost surely, 2^{145344403354645} is an apocalyptic number.

It is an amenable number.

145344403354645 is a deficient number, since it is larger than the sum of its proper divisors (47217031807787).

145344403354645 is a wasteful number, since it uses less digits than its factorization.

145344403354645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31838861732.

The product of its (nonzero) digits is 82944000, while the sum is 55.

The spelling of 145344403354645 in words is "one hundred forty-five trillion, three hundred forty-four billion, four hundred three million, three hundred fifty-four thousand, six hundred forty-five".