155335864321 has 8 divisors (see below), whose sum is σ = 169477913664. Its totient is φ = 141197249520.

The previous prime is 155335864253. The next prime is 155335864331. The reversal of 155335864321 is 123468533551.

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 155335864321 - 2¹¹ = 155335862273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155335864331) 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, 763606 + ... + 945391.

It is an arithmetic number, because the mean of its divisors is an integer number (21184739208).

Almost surely, 2^155335864321 is an apocalyptic number.

155335864321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

155335864321 is a deficient number, since it is larger than the sum of its proper divisors (14142049343).

155335864321 is a wasteful number, since it uses less digits than its factorization.

155335864321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717271.

The product of its digits is 1296000, while the sum is 46.

The spelling of 155335864321 in words is "one hundred fifty-five billion, three hundred thirty-five million, eight hundred sixty-four thousand, three hundred twenty-one".