149704689171 has 16 divisors (see below), whose sum is σ = 199919370240. Its totient is φ = 99646641120.

The previous prime is 149704689161. The next prime is 149704689209. The reversal of 149704689171 is 171986407941.

It is not a de Polignac number, because 149704689171 - 2⁶ = 149704689107 is a prime.

It is a super-2 number, since 2×149704689171² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149704689131) 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, 11864656 + ... + 11877266.

It is an arithmetic number, because the mean of its divisors is an integer number (12494960640).

Almost surely, 2^149704689171 is an apocalyptic number.

149704689171 is a deficient number, since it is larger than the sum of its proper divisors (50214681069).

149704689171 is a wasteful number, since it uses less digits than its factorization.

149704689171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18506.

The product of its (nonzero) digits is 3048192, while the sum is 57.

The spelling of 149704689171 in words is "one hundred forty-nine billion, seven hundred four million, six hundred eighty-nine thousand, one hundred seventy-one".