66152043165 has 64 divisors (see below), whose sum is σ = 115539379200. Its totient is φ = 32123879424.

The previous prime is 66152043161. The next prime is 66152043263. The reversal of 66152043165 is 56134025166.

It is not a de Polignac number, because 66152043165 - 2² = 66152043161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66152043161) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31070821 + ... + 31072949.

It is an arithmetic number, because the mean of its divisors is an integer number (1805302800).

Almost surely, 2^66152043165 is an apocalyptic number.

66152043165 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

66152043165 is a deficient number, since it is larger than the sum of its proper divisors (49387336035).

66152043165 is a wasteful number, since it uses less digits than its factorization.

66152043165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4246.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 66152043165 in words is "sixty-six billion, one hundred fifty-two million, forty-three thousand, one hundred sixty-five".