169144172074 has 32 divisors (see below), whose sum is σ = 278735184000. Its totient is φ = 76622635584.

The previous prime is 169144172011. The next prime is 169144172083. The reversal of 169144172074 is 470271441961.

It is a super-2 number, since 2×169144172074² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5428612 + ... + 5459680.

It is an arithmetic number, because the mean of its divisors is an integer number (8710474500).

Almost surely, 2^169144172074 is an apocalyptic number.

169144172074 is a deficient number, since it is larger than the sum of its proper divisors (109591011926).

169144172074 is a wasteful number, since it uses less digits than its factorization.

169144172074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37342.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 169144172074 in words is "one hundred sixty-nine billion, one hundred forty-four million, one hundred seventy-two thousand, seventy-four".