161606155016595 has 16 divisors (see below), whose sum is σ = 267486049683360. Its totient is φ = 83217882123264.

The previous prime is 161606155016587. The next prime is 161606155016611. The reversal of 161606155016595 is 595610551606161.

It is a happy number.

It is not a de Polignac number, because 161606155016595 - 2³ = 161606155016587 is a prime.

It is a super-2 number, since 2×161606155016595² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185754200734 + ... + 185754201603.

It is an arithmetic number, because the mean of its divisors is an integer number (16717878105210).

Almost surely, 2^{161606155016595} is an apocalyptic number.

161606155016595 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161606155016595 is a deficient number, since it is larger than the sum of its proper divisors (105879894666765).

161606155016595 is a wasteful number, since it uses less digits than its factorization.

161606155016595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371508402374.

The product of its (nonzero) digits is 7290000, while the sum is 57.

The spelling of 161606155016595 in words is "one hundred sixty-one trillion, six hundred six billion, one hundred fifty-five million, sixteen thousand, five hundred ninety-five".