356656445404201 has 4 divisors (see below), whose sum is σ = 375427837267600. Its totient is φ = 337885053540804.

The previous prime is 356656445404141. The next prime is 356656445404333. The reversal of 356656445404201 is 102404544656653.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 356656445404201 - 2²¹ = 356656443307049 is a prime.

It is a super-2 number, since 2×356656445404201² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (356656445204201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9385695931671 + ... + 9385695931708.

It is an arithmetic number, because the mean of its divisors is an integer number (93856959316900).

Almost surely, 2^{356656445404201} is an apocalyptic number.

It is an amenable number.

356656445404201 is a deficient number, since it is larger than the sum of its proper divisors (18771391863399).

356656445404201 is a wasteful number, since it uses less digits than its factorization.

356656445404201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18771391863398.

The product of its (nonzero) digits is 41472000, while the sum is 55.

The spelling of 356656445404201 in words is "three hundred fifty-six trillion, six hundred fifty-six billion, four hundred forty-five million, four hundred four thousand, two hundred one".