355413270997 has 6 divisors (see below), whose sum is σ = 365022759458. Its totient is φ = 345803978592.

The previous prime is 355413270967. The next prime is 355413271007. The reversal of 355413270997 is 799072314553.

It can be written as a sum of positive squares in 3 ways, for example, as 46411808356 + 309001462641 = 215434^2 + 555879^2 .

It is a de Polignac number, because none of the positive numbers 2^k-355413270997 is a prime.

It is a super-2 number, since 2×355413270997² (a number of 24 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 (355413270937) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3577329 + ... + 3675337.

Almost surely, 2^355413270997 is an apocalyptic number.

355413270997 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

355413270997 is a deficient number, since it is larger than the sum of its proper divisors (9609488461).

355413270997 is an frugal number, since it uses more digits than its factorization.

355413270997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196055 (or 98046 counting only the distinct ones).

The product of its (nonzero) digits is 7144200, while the sum is 55.

The spelling of 355413270997 in words is "three hundred fifty-five billion, four hundred thirteen million, two hundred seventy thousand, nine hundred ninety-seven".