6537550149 has 16 divisors (see below), whose sum is σ = 10430280000. Its totient is φ = 4023107568.

The previous prime is 6537550139. The next prime is 6537550213. The reversal of 6537550149 is 9410557356.

6537550149 is a `hidden beast` number, since 6 + 53 + 7 + 550 + 1 + 49 = 666.

It is not a de Polignac number, because 6537550149 - 2¹³ = 6537541957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6537550139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9312399 + ... + 9313100.

It is an arithmetic number, because the mean of its divisors is an integer number (651892500).

Almost surely, 2^6537550149 is an apocalyptic number.

It is an amenable number.

6537550149 is a deficient number, since it is larger than the sum of its proper divisors (3892729851).

6537550149 is a wasteful number, since it uses less digits than its factorization.

6537550149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18625521 (or 18625515 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The square root of 6537550149 is about 80855.1182609982. The cubic root of 6537550149 is about 1869.8424327950.

The spelling of 6537550149 in words is "six billion, five hundred thirty-seven million, five hundred fifty thousand, one hundred forty-nine".