161616149298 has 12 divisors (see below), whose sum is σ = 350168323518. Its totient is φ = 53872049760.

The previous prime is 161616149281. The next prime is 161616149327. The reversal of 161616149298 is 892941616161.

161616149298 is a `hidden beast` number, since 1 + 6 + 1 + 6 + 1 + 61 + 492 + 98 = 666.

It can be written as a sum of positive squares in only one way, i.e., 103830239529 + 57785909769 = 322227^2 + 240387^2 .

It is a super-2 number, since 2×161616149298² (a number of 23 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4489337463 + ... + 4489337498.

Almost surely, 2^161616149298 is an apocalyptic number.

161616149298 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

161616149298 is an abundant number, since it is smaller than the sum of its proper divisors (188552174220).

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

161616149298 is a wasteful number, since it uses less digits than its factorization.

161616149298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8978674969 (or 8978674966 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 54.

The spelling of 161616149298 in words is "one hundred sixty-one billion, six hundred sixteen million, one hundred forty-nine thousand, two hundred ninety-eight".