161070655065 has 16 divisors (see below), whose sum is σ = 257723019456. Its totient is φ = 85901025600.

The previous prime is 161070655063. The next prime is 161070655079. The reversal of 161070655065 is 560556070161.

It is not a de Polignac number, because 161070655065 - 2¹ = 161070655063 is a prime.

It is a super-3 number, since 3×161070655065³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (161070655063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221475 + ... + 609255.

It is an arithmetic number, because the mean of its divisors is an integer number (16107688716).

Almost surely, 2^161070655065 is an apocalyptic number.

161070655065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

161070655065 is a deficient number, since it is larger than the sum of its proper divisors (96652364391).

161070655065 is a wasteful number, since it uses less digits than its factorization.

161070655065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415480.

The product of its (nonzero) digits is 189000, while the sum is 42.

The spelling of 161070655065 in words is "one hundred sixty-one billion, seventy million, six hundred fifty-five thousand, sixty-five".