165396541510 has 16 divisors (see below), whose sum is σ = 297901872576. Its totient is φ = 66116817088.

The previous prime is 165396541469. The next prime is 165396541511. The reversal of 165396541510 is 15145693561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165396541511) 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, 5208319 + ... + 5239978.

It is an arithmetic number, because the mean of its divisors is an integer number (18618867036).

Almost surely, 2^165396541510 is an apocalyptic number.

165396541510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165396541510 is a deficient number, since it is larger than the sum of its proper divisors (132505331066).

165396541510 is a wasteful number, since it uses less digits than its factorization.

165396541510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10449887.

The product of its (nonzero) digits is 486000, while the sum is 46.

The spelling of 165396541510 in words is "one hundred sixty-five billion, three hundred ninety-six million, five hundred forty-one thousand, five hundred ten".