165190101489 has 120 divisors (see below), whose sum is σ = 291247895400. Its totient is φ = 93023852544.

The previous prime is 165190101463. The next prime is 165190101493. The reversal of 165190101489 is 984101091561.

165190101489 is a `hidden beast` number, since 1 + 65 + 1 + 9 + 0 + 101 + 489 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1856920464 + 163333181025 = 43092^2 + 404145^2 .

It is not a de Polignac number, because 165190101489 - 2²¹ = 165188004337 is a prime.

It is a super-2 number, since 2×165190101489² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (165190101499) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 106642287 + ... + 106643835.

It is an arithmetic number, because the mean of its divisors is an integer number (2427065795).

Almost surely, 2^165190101489 is an apocalyptic number.

It is an amenable number.

165190101489 is a deficient number, since it is larger than the sum of its proper divisors (126057793911).

165190101489 is a wasteful number, since it uses less digits than its factorization.

165190101489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949 (or 1933 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 45.

The spelling of 165190101489 in words is "one hundred sixty-five billion, one hundred ninety million, one hundred one thousand, four hundred eighty-nine".