355234255511421 has 128 divisors (see below), whose sum is σ = 612918875842560. Its totient is φ = 179728075238400.

The previous prime is 355234255511419. The next prime is 355234255511461. The reversal of 355234255511421 is 124115552432553.

It is a happy number.

It is not a de Polignac number, because 355234255511421 - 2¹ = 355234255511419 is a prime.

It is a super-2 number, since 2×355234255511421² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355234255511461) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4872006 + ... + 27096216.

It is an arithmetic number, because the mean of its divisors is an integer number (4788428717520).

Almost surely, 2^{355234255511421} is an apocalyptic number.

It is an amenable number.

355234255511421 is a deficient number, since it is larger than the sum of its proper divisors (257684620331139).

355234255511421 is a wasteful number, since it uses less digits than its factorization.

355234255511421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22224347.

The product of its digits is 3600000, while the sum is 48.

The spelling of 355234255511421 in words is "three hundred fifty-five trillion, two hundred thirty-four billion, two hundred fifty-five million, five hundred eleven thousand, four hundred twenty-one".