155556256326434 has 96 divisors (see below), whose sum is σ = 249872196772800. Its totient is φ = 72614087884800.

The previous prime is 155556256326421. The next prime is 155556256326437. The reversal of 155556256326434 is 434623652655551.

It is a super-3 number, since 3×155556256326434³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (155556256326437) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32400800834 + ... + 32400805634.

It is an arithmetic number, because the mean of its divisors is an integer number (2602835383050).

Almost surely, 2^{155556256326434} is an apocalyptic number.

155556256326434 is a deficient number, since it is larger than the sum of its proper divisors (94315940446366).

155556256326434 is a wasteful number, since it uses less digits than its factorization.

155556256326434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5988 (or 5971 counting only the distinct ones).

The product of its digits is 388800000, while the sum is 62.

The spelling of 155556256326434 in words is "one hundred fifty-five trillion, five hundred fifty-six billion, two hundred fifty-six million, three hundred twenty-six thousand, four hundred thirty-four".