161605511166098 has 16 divisors (see below), whose sum is σ = 250342724578560. Its totient is φ = 78160328730000.

The previous prime is 161605511166061. The next prime is 161605511166119. The reversal of 161605511166098 is 890661115506161.

161605511166098 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161605511166098² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597969653 + ... + 598239848.

It is an arithmetic number, because the mean of its divisors is an integer number (15646420286160).

Almost surely, 2^{161605511166098} is an apocalyptic number.

161605511166098 is a deficient number, since it is larger than the sum of its proper divisors (88737213412462).

161605511166098 is a wasteful number, since it uses less digits than its factorization.

161605511166098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196211713.

The product of its (nonzero) digits is 2332800, while the sum is 56.

The spelling of 161605511166098 in words is "one hundred sixty-one trillion, six hundred five billion, five hundred eleven million, one hundred sixty-six thousand, ninety-eight".