145913555649 has 8 divisors (see below), whose sum is σ = 195238869472. Its totient is φ = 96931972800.

The previous prime is 145913555647. The next prime is 145913555677. The reversal of 145913555649 is 946555319541.

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

It is not a de Polignac number, because 145913555649 - 2¹ = 145913555647 is a prime.

It is a super-2 number, since 2×145913555649² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145913555647) 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, 85931752 + ... + 85933449.

It is an arithmetic number, because the mean of its divisors is an integer number (24404858684).

Almost surely, 2^145913555649 is an apocalyptic number.

It is an amenable number.

145913555649 is a deficient number, since it is larger than the sum of its proper divisors (49325313823).

145913555649 is a wasteful number, since it uses less digits than its factorization.

145913555649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171865487.

The product of its digits is 14580000, while the sum is 57.

The spelling of 145913555649 in words is "one hundred forty-five billion, nine hundred thirteen million, five hundred fifty-five thousand, six hundred forty-nine".