148615560817 has 4 divisors (see below), whose sum is σ = 148636420416. Its totient is φ = 148594701220.

The previous prime is 148615560811. The next prime is 148615560851. The reversal of 148615560817 is 718065516841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 718065516841 = 19 ⋅37792921939.

It is a cyclic number.

It is not a de Polignac number, because 148615560817 - 2¹¹ = 148615558769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148615560811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10419109 + ... + 10433362.

It is an arithmetic number, because the mean of its divisors is an integer number (37159105104).

Almost surely, 2^148615560817 is an apocalyptic number.

It is an amenable number.

148615560817 is a deficient number, since it is larger than the sum of its proper divisors (20859599).

148615560817 is an equidigital number, since it uses as much as digits as its factorization.

148615560817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20859598.

The product of its (nonzero) digits is 1612800, while the sum is 52.

The spelling of 148615560817 in words is "one hundred forty-eight billion, six hundred fifteen million, five hundred sixty thousand, eight hundred seventeen".