160891398 has 24 divisors (see below), whose sum is σ = 349402248. Its totient is φ = 53506752.

The previous prime is 160891369. The next prime is 160891427. The reversal of 160891398 is 893198061.

160891398 is a `hidden beast` number, since 1 + 608 + 9 + 1 + 39 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (160891369) and next prime (160891427).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2115 + ... + 18062.

It is an arithmetic number, because the mean of its divisors is an integer number (14558427).

Almost surely, 2^160891398 is an apocalyptic number.

160891398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

160891398 is an abundant number, since it is smaller than the sum of its proper divisors (188510850).

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

160891398 is a wasteful number, since it uses less digits than its factorization.

160891398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20628 (or 20625 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 160891398 is about 12684.2973002055. The cubic root of 160891398 is about 543.8898345078.

The spelling of 160891398 in words is "one hundred sixty million, eight hundred ninety-one thousand, three hundred ninety-eight".