161650150064 has 40 divisors (see below), whose sum is σ = 339553006800. Its totient is φ = 74107024128.

The previous prime is 161650150061. The next prime is 161650150117. The reversal of 161650150064 is 460051056161.

It is a super-2 number, since 2×161650150064² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161650150061) 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, 2576942 + ... + 2638925.

It is an arithmetic number, because the mean of its divisors is an integer number (8488825170).

Almost surely, 2^161650150064 is an apocalyptic number.

It is an amenable number.

161650150064 is an abundant number, since it is smaller than the sum of its proper divisors (177902856736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161650150064 is a wasteful number, since it uses less digits than its factorization.

161650150064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5216037 (or 5216031 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 161650150064 in words is "one hundred sixty-one billion, six hundred fifty million, one hundred fifty thousand, sixty-four".