165149001006 has 128 divisors (see below), whose sum is σ = 391325147136. Its totient is φ = 45896148480.

The previous prime is 165149000987. The next prime is 165149001013. The reversal of 165149001006 is 600100941561.

It is a super-3 number, since 3×165149001006³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21369115 + ... + 21376841.

It is an arithmetic number, because the mean of its divisors is an integer number (3057227712).

Almost surely, 2^165149001006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165149001006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195662573568).

165149001006 is an abundant number, since it is smaller than the sum of its proper divisors (226176146130).

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

165149001006 is a wasteful number, since it uses less digits than its factorization.

165149001006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8246.

The product of its (nonzero) digits is 6480, while the sum is 33.

Adding to 165149001006 its reverse (600100941561), we get a palindrome (765249942567).

The spelling of 165149001006 in words is "one hundred sixty-five billion, one hundred forty-nine million, one thousand, six".