169400855394 has 12 divisors (see below), whose sum is σ = 367035186726. Its totient is φ = 56466951792.

The previous prime is 169400855369. The next prime is 169400855447. The reversal of 169400855394 is 493558004961.

169400855394 is a `hidden beast` number, since 1 + 69 + 40 + 0 + 8 + 5 + 539 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 104352903369 + 65047952025 = 323037^2 + 255045^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 169400855394.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4705579299 + ... + 4705579334.

Almost surely, 2^169400855394 is an apocalyptic number.

169400855394 is an abundant number, since it is smaller than the sum of its proper divisors (197634331332).

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

169400855394 is a wasteful number, since it uses less digits than its factorization.

169400855394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9411158641 (or 9411158638 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 169400855394 in words is "one hundred sixty-nine billion, four hundred million, eight hundred fifty-five thousand, three hundred ninety-four".