149661648484 has 24 divisors (see below), whose sum is σ = 264899580120. Its totient is φ = 73976365056.

The previous prime is 149661648481. The next prime is 149661648491. The reversal of 149661648484 is 484846166941.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 47019585600 + 102642062884 = 216840^2 + 320378^2 .

It is not an unprimeable number, because it can be changed into a prime (149661648481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2049204 + ... + 2120980.

It is an arithmetic number, because the mean of its divisors is an integer number (11037482505).

Almost surely, 2^149661648484 is an apocalyptic number.

It is an amenable number.

149661648484 is a deficient number, since it is larger than the sum of its proper divisors (115237931636).

149661648484 is a wasteful number, since it uses less digits than its factorization.

149661648484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77727 (or 77725 counting only the distinct ones).

The product of its digits is 31850496, while the sum is 61.

The spelling of 149661648484 in words is "one hundred forty-nine billion, six hundred sixty-one million, six hundred forty-eight thousand, four hundred eighty-four".