355164745849 has 3 divisors (see below), whose sum is σ = 355165341807. Its totient is φ = 355164149892.

The previous prime is 355164745763. The next prime is 355164745877. The reversal of 355164745849 is 948547461553.

The square root of 355164745849 is 595957.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 948547461553 = 29 ⋅32708533157.

It can be written as a sum of positive squares in only one way, i.e., 218018955625 + 137145790224 = 466925^2 + 370332^2 .

It is not a de Polignac number, because 355164745849 - 2⁹ = 355164745337 is a prime.

It is a super-2 number, since 2×355164745849² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355464745849) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 297979 + ... + 893935.

It is an arithmetic number, because the mean of its divisors is an integer number (118388447269).

Almost surely, 2^355164745849 is an apocalyptic number.

355164745849 is the 595957-th square number.

355164745849 is the 297979-th centered octagonal number.

It is an amenable number.

355164745849 is a deficient number, since it is larger than the sum of its proper divisors (595958).

355164745849 is an frugal number, since it uses more digits than its factorization.

355164745849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191914 (or 595957 counting only the distinct ones).

The product of its digits is 72576000, while the sum is 61.

The spelling of 355164745849 in words is "three hundred fifty-five billion, one hundred sixty-four million, seven hundred forty-five thousand, eight hundred forty-nine".