145656662013 has 12 divisors (see below), whose sum is σ = 210446556060. Its totient is φ = 97079702976.

The previous prime is 145656662009. The next prime is 145656662023. The reversal of 145656662013 is 310266656541.

It can be written as a sum of positive squares in 2 ways, for example, as 93331472004 + 52325190009 = 305502^2 + 228747^2 .

It is not a de Polignac number, because 145656662013 - 2² = 145656662009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145656662013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145656662003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2024206 + ... + 2094927.

It is an arithmetic number, because the mean of its divisors is an integer number (17537213005).

Almost surely, 2^145656662013 is an apocalyptic number.

It is an amenable number.

145656662013 is a deficient number, since it is larger than the sum of its proper divisors (64789894047).

145656662013 is a wasteful number, since it uses less digits than its factorization.

145656662013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4123068 (or 4123065 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 145656662013 in words is "one hundred forty-five billion, six hundred fifty-six million, six hundred sixty-two thousand, thirteen".