161650051065115 has 32 divisors (see below), whose sum is σ = 199060494796800. Its totient is φ = 125973451860480.

The previous prime is 161650051065091. The next prime is 161650051065137. The reversal of 161650051065115 is 511560150056161.

It is a de Polignac number, because none of the positive numbers 2^k-161650051065115 is a prime.

It is a super-2 number, since 2×161650051065115² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141404470 + ... + 142543060.

It is an arithmetic number, because the mean of its divisors is an integer number (6220640462400).

Almost surely, 2^{161650051065115} is an apocalyptic number.

161650051065115 is a deficient number, since it is larger than the sum of its proper divisors (37410443731685).

161650051065115 is a wasteful number, since it uses less digits than its factorization.

161650051065115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143027.

The product of its (nonzero) digits is 135000, while the sum is 43.

The spelling of 161650051065115 in words is "one hundred sixty-one trillion, six hundred fifty billion, fifty-one million, sixty-five thousand, one hundred fifteen".