745165157447 has 16 divisors (see below), whose sum is σ = 788626016640. Its totient is φ = 702130832928.

The previous prime is 745165157441. The next prime is 745165157521. The reversal of 745165157447 is 744751561547.

It is a cyclic number.

It is not a de Polignac number, because 745165157447 - 2⁴ = 745165157431 is a prime.

It is a super-2 number, since 2×745165157447² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 745165157392 and 745165157401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745165157441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11897708 + ... + 11960174.

It is an arithmetic number, because the mean of its divisors is an integer number (49289126040).

Almost surely, 2^745165157447 is an apocalyptic number.

745165157447 is a deficient number, since it is larger than the sum of its proper divisors (43460859193).

745165157447 is a wasteful number, since it uses less digits than its factorization.

745165157447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65870.

The product of its digits is 16464000, while the sum is 56.

The spelling of 745165157447 in words is "seven hundred forty-five billion, one hundred sixty-five million, one hundred fifty-seven thousand, four hundred forty-seven".