149968620549 has 24 divisors (see below), whose sum is σ = 237069236352. Its totient is φ = 90599670720.

The previous prime is 149968620509. The next prime is 149968620559. The reversal of 149968620549 is 945026869941.

149968620549 is a `hidden beast` number, since 1 + 4 + 9 + 9 + 6 + 86 + 2 + 0 + 549 = 666.

It is not a de Polignac number, because 149968620549 - 2²⁴ = 149951843333 is a prime.

It is a super-2 number, since 2×149968620549² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149968620509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2388877 + ... + 2450850.

It is an arithmetic number, because the mean of its divisors is an integer number (9877884848).

Almost surely, 2^149968620549 is an apocalyptic number.

It is an amenable number.

149968620549 is a deficient number, since it is larger than the sum of its proper divisors (87100615803).

149968620549 is a wasteful number, since it uses less digits than its factorization.

149968620549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4840057 (or 4840054 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 63.

The spelling of 149968620549 in words is "one hundred forty-nine billion, nine hundred sixty-eight million, six hundred twenty thousand, five hundred forty-nine".