153866165213 has 8 divisors (see below), whose sum is σ = 155678239800. Its totient is φ = 152055940608.

The previous prime is 153866165209. The next prime is 153866165221. The reversal of 153866165213 is 312561668351.

It can be written as a sum of positive squares in 4 ways, for example, as 11916560569 + 141949604644 = 109163^2 + 376762^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 153866165213 - 2² = 153866165209 is a prime.

It is a super-2 number, since 2×153866165213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153866165203) 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, 294818 + ... + 628211.

It is an arithmetic number, because the mean of its divisors is an integer number (19459779975).

Almost surely, 2^153866165213 is an apocalyptic number.

It is an amenable number.

153866165213 is a deficient number, since it is larger than the sum of its proper divisors (1812074587).

153866165213 is an equidigital number, since it uses as much as digits as its factorization.

153866165213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924991.

The product of its digits is 777600, while the sum is 47.

The spelling of 153866165213 in words is "one hundred fifty-three billion, eight hundred sixty-six million, one hundred sixty-five thousand, two hundred thirteen".