148993646517 has 6 divisors (see below), whose sum is σ = 215213044982. Its totient is φ = 99329097672.

The previous prime is 148993646453. The next prime is 148993646551. The reversal of 148993646517 is 715646399841.

148993646517 is a `hidden beast` number, since 1 + 4 + 89 + 9 + 36 + 4 + 6 + 517 = 666.

It can be written as a sum of positive squares in only one way, i.e., 147831791121 + 1161855396 = 384489^2 + 34086^2 .

It is not a de Polignac number, because 148993646517 - 2⁶ = 148993646453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148993646597) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8277424798 + ... + 8277424815.

Almost surely, 2^148993646517 is an apocalyptic number.

It is an amenable number.

148993646517 is a deficient number, since it is larger than the sum of its proper divisors (66219398465).

148993646517 is a wasteful number, since it uses less digits than its factorization.

148993646517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16554849619 (or 16554849616 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 63.

The spelling of 148993646517 in words is "one hundred forty-eight billion, nine hundred ninety-three million, six hundred forty-six thousand, five hundred seventeen".