1623149177171 has 12 divisors (see below), whose sum is σ = 1724381116200. Its totient is φ = 1527549192960.

The previous prime is 1623149177147. The next prime is 1623149177201. The reversal of 1623149177171 is 1717719413261.

It is a de Polignac number, because none of the positive numbers 2^k-1623149177171 is a prime.

It is a super-2 number, since 2×1623149177171² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1623149177141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3555956 + ... + 3986366.

It is an arithmetic number, because the mean of its divisors is an integer number (143698426350).

Almost surely, 2^{1623149177171} is an apocalyptic number.

1623149177171 is a deficient number, since it is larger than the sum of its proper divisors (101231939029).

1623149177171 is a wasteful number, since it uses less digits than its factorization.

1623149177171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443494 (or 443477 counting only the distinct ones).

The product of its digits is 444528, while the sum is 50.

The spelling of 1623149177171 in words is "one trillion, six hundred twenty-three billion, one hundred forty-nine million, one hundred seventy-seven thousand, one hundred seventy-one".