161606115610 has 16 divisors (see below), whose sum is σ = 290895595776. Its totient is φ = 64641426768.

The previous prime is 161606115557. The next prime is 161606115617. The reversal of 161606115610 is 16511606161.

It is a super-2 number, since 2×161606115610² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161606115617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1117267 + ... + 1253593.

It is an arithmetic number, because the mean of its divisors is an integer number (18180974736).

Almost surely, 2^161606115610 is an apocalyptic number.

161606115610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161606115610 is a deficient number, since it is larger than the sum of its proper divisors (129289480166).

161606115610 is a wasteful number, since it uses less digits than its factorization.

161606115610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254877.

The product of its (nonzero) digits is 6480, while the sum is 34.

The spelling of 161606115610 in words is "one hundred sixty-one billion, six hundred six million, one hundred fifteen thousand, six hundred ten".