169420556434 has 8 divisors (see below), whose sum is σ = 254133234828. Its totient is φ = 84709478160.

The previous prime is 169420556423. The next prime is 169420556507. The reversal of 169420556434 is 434655024961.

It can be written as a sum of positive squares in 2 ways, for example, as 166624790809 + 2795765625 = 408197^2 + 52875^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86037 + ... + 588424.

Almost surely, 2^169420556434 is an apocalyptic number.

169420556434 is a deficient number, since it is larger than the sum of its proper divisors (84712678394).

169420556434 is a wasteful number, since it uses less digits than its factorization.

169420556434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800060.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 169420556434 in words is "one hundred sixty-nine billion, four hundred twenty million, five hundred fifty-six thousand, four hundred thirty-four".