149194856640 has 56 divisors (see below), whose sum is σ = 473693672880. Its totient is φ = 39785294848.

The previous prime is 149194856633. The next prime is 149194856693. The reversal of 149194856640 is 46658491941.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 77704695 + ... + 77706614.

Almost surely, 2^149194856640 is an apocalyptic number.

149194856640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149194856640 is an abundant number, since it is smaller than the sum of its proper divisors (324498816240).

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

149194856640 is a wasteful number, since it uses less digits than its factorization.

149194856640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155411329 (or 155411319 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 57.

The spelling of 149194856640 in words is "one hundred forty-nine billion, one hundred ninety-four million, eight hundred fifty-six thousand, six hundred forty".