149396170140520 has 16 divisors (see below), whose sum is σ = 336141382816260. Its totient is φ = 59758468056192.

The previous prime is 149396170140517. The next prime is 149396170140559. The reversal of 149396170140520 is 25041071693941.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 144797950372804 + 4598219767716 = 12033202^2 + 2144346^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1867452126717 + ... + 1867452126796.

Almost surely, 2^{149396170140520} is an apocalyptic number.

149396170140520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149396170140520 is an abundant number, since it is smaller than the sum of its proper divisors (186745212675740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149396170140520 is a wasteful number, since it uses less digits than its factorization.

149396170140520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3734904253524 (or 3734904253520 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 149396170140520 in words is "one hundred forty-nine trillion, three hundred ninety-six billion, one hundred seventy million, one hundred forty thousand, five hundred twenty".