148691647546 has 24 divisors (see below), whose sum is σ = 241573744764. Its totient is φ = 68609923200.

The previous prime is 148691647501. The next prime is 148691647579. The reversal of 148691647546 is 645746196841.

It can be written as a sum of positive squares in 6 ways, for example, as 2415231025 + 146276416521 = 49145^2 + 382461^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1367580 + ... + 1472296.

Almost surely, 2^148691647546 is an apocalyptic number.

148691647546 is a deficient number, since it is larger than the sum of its proper divisors (92882097218).

148691647546 is a wasteful number, since it uses less digits than its factorization.

148691647546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108946 (or 108933 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 61.

The spelling of 148691647546 in words is "one hundred forty-eight billion, six hundred ninety-one million, six hundred forty-seven thousand, five hundred forty-six".