165013950 has 24 divisors (see below), whose sum is σ = 409234968. Its totient is φ = 44003680.

The previous prime is 165013909. The next prime is 165013957. The reversal of 165013950 is 59310561.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165013957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 549897 + ... + 550196.

It is an arithmetic number, because the mean of its divisors is an integer number (17051457).

Almost surely, 2^165013950 is an apocalyptic number.

165013950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165013950 is an abundant number, since it is smaller than the sum of its proper divisors (244221018).

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

165013950 is a wasteful number, since it uses less digits than its factorization.

165013950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100108 (or 1100103 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 165013950 is about 12845.7755702021. The cubic root of 165013950 is about 548.4961119898.

The spelling of 165013950 in words is "one hundred sixty-five million, thirteen thousand, nine hundred fifty".