145610656615 has 4 divisors (see below), whose sum is σ = 174732787944. Its totient is φ = 116488525288.

The previous prime is 145610656579. The next prime is 145610656679. The reversal of 145610656615 is 516656016541.

145610656615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145610656615 - 2²¹ = 145608559463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14561065657 + ... + 14561065666.

It is an arithmetic number, because the mean of its divisors is an integer number (43683196986).

Almost surely, 2^145610656615 is an apocalyptic number.

145610656615 is a deficient number, since it is larger than the sum of its proper divisors (29122131329).

145610656615 is an equidigital number, since it uses as much as digits as its factorization.

145610656615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29122131328.

The product of its (nonzero) digits is 648000, while the sum is 46.

The spelling of 145610656615 in words is "one hundred forty-five billion, six hundred ten million, six hundred fifty-six thousand, six hundred fifteen".