161606600061051 has 64 divisors (see below), whose sum is σ = 234509990400000. Its totient is φ = 98663852580480.

The previous prime is 161606600060953. The next prime is 161606600061061. The reversal of 161606600061051 is 150160006606161.

It is not a de Polignac number, because 161606600061051 - 2¹⁹ = 161606599536763 is a prime.

It is a super-2 number, since 2×161606600061051² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161606600061061) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 717682786 + ... + 717907928.

It is an arithmetic number, because the mean of its divisors is an integer number (3664218600000).

Almost surely, 2^{161606600061051} is an apocalyptic number.

161606600061051 is a deficient number, since it is larger than the sum of its proper divisors (72903390338949).

161606600061051 is a wasteful number, since it uses less digits than its factorization.

161606600061051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228784.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 161606600061051 in words is "one hundred sixty-one trillion, six hundred six billion, six hundred million, sixty-one thousand, fifty-one".