357213327141661 has 4 divisors (see below), whose sum is σ = 357214066941312. Its totient is φ = 357212587342012.

The previous prime is 357213327141637. The next prime is 357213327141683. The reversal of 357213327141661 is 166141723312753.

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 a de Polignac number, because none of the positive numbers 2^k-357213327141661 is a prime.

It is a super-2 number, since 2×357213327141661² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 357213327141599 and 357213327141608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (357213327141611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369175075 + ... + 370141408.

It is an arithmetic number, because the mean of its divisors is an integer number (89303516735328).

Almost surely, 2^{357213327141661} is an apocalyptic number.

It is an amenable number.

357213327141661 is a deficient number, since it is larger than the sum of its proper divisors (739799651).

357213327141661 is an equidigital number, since it uses as much as digits as its factorization.

357213327141661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739799650.

The product of its digits is 3810240, while the sum is 52.

The spelling of 357213327141661 in words is "three hundred fifty-seven trillion, two hundred thirteen billion, three hundred twenty-seven million, one hundred forty-one thousand, six hundred sixty-one".