155359821426 has 8 divisors (see below), whose sum is σ = 310719642864. Its totient is φ = 51786607140.

The previous prime is 155359821373. The next prime is 155359821431. The reversal of 155359821426 is 624128953551.

It is a happy number.

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

155359821426 is an admirable number.

It is a super-2 number, since 2×155359821426² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12946651780 + ... + 12946651791.

It is an arithmetic number, because the mean of its divisors is an integer number (38839955358).

Almost surely, 2^155359821426 is an apocalyptic number.

155359821426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155359821426 is a wasteful number, since it uses less digits than its factorization.

155359821426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25893303576.

The product of its digits is 2592000, while the sum is 51.

The spelling of 155359821426 in words is "one hundred fifty-five billion, three hundred fifty-nine million, eight hundred twenty-one thousand, four hundred twenty-six".