155363873381 has 8 divisors (see below), whose sum is σ = 160570979328. Its totient is φ = 150168978000.

The previous prime is 155363873317. The next prime is 155363873389. The reversal of 155363873381 is 183378363551.

It is a happy number.

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 155363873381 - 2⁶ = 155363873317 is a prime.

It is a super-2 number, since 2×155363873381² (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 (155363873389) 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, 3026765 + ... + 3077666.

It is an arithmetic number, because the mean of its divisors is an integer number (20071372416).

Almost surely, 2^155363873381 is an apocalyptic number.

It is an amenable number.

155363873381 is a deficient number, since it is larger than the sum of its proper divisors (5207105947).

155363873381 is an equidigital number, since it uses as much as digits as its factorization.

155363873381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105283.

The product of its digits is 5443200, while the sum is 53.

The spelling of 155363873381 in words is "one hundred fifty-five billion, three hundred sixty-three million, eight hundred seventy-three thousand, three hundred eighty-one".