161601011151074 has 64 divisors (see below), whose sum is σ = 266293397422080. Its totient is φ = 72941103360000.

The previous prime is 161601011151067. The next prime is 161601011151079. The reversal of 161601011151074 is 470151110106161.

It is a super-2 number, since 2×161601011151074² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161601011151079) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5576472317 + ... + 5576501295.

It is an arithmetic number, because the mean of its divisors is an integer number (4160834334720).

Almost surely, 2^{161601011151074} is an apocalyptic number.

161601011151074 is a deficient number, since it is larger than the sum of its proper divisors (104692386271006).

161601011151074 is a wasteful number, since it uses less digits than its factorization.

161601011151074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31487.

The product of its (nonzero) digits is 5040, while the sum is 35.

The spelling of 161601011151074 in words is "one hundred sixty-one trillion, six hundred one billion, eleven million, one hundred fifty-one thousand, seventy-four".