149494817949966 has 64 divisors (see below), whose sum is σ = 333540083036160. Its totient is φ = 49632242227200.

The previous prime is 149494817949941. The next prime is 149494817950001. The reversal of 149494817949966 is 669949718494941.

It is a happy number.

149494817949966 is a `hidden beast` number, since 1 + 4 + 9 + 4 + 9 + 48 + 1 + 79 + 499 + 6 + 6 = 666.

149494817949966 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126409005 + ... + 127586151.

It is an arithmetic number, because the mean of its divisors is an integer number (5211563797440).

Almost surely, 2^{149494817949966} is an apocalyptic number.

149494817949966 is an abundant number, since it is smaller than the sum of its proper divisors (184045265086194).

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

149494817949966 is a wasteful number, since it uses less digits than its factorization.

149494817949966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186566 (or 1186560 counting only the distinct ones).

The product of its digits is 30474952704, while the sum is 90.

The spelling of 149494817949966 in words is "one hundred forty-nine trillion, four hundred ninety-four billion, eight hundred seventeen million, nine hundred forty-nine thousand, nine hundred sixty-six".