3208161157321 has 8 divisors (see below), whose sum is σ = 3312038872064. Its totient is φ = 3104307732960.

The previous prime is 3208161157303. The next prime is 3208161157367. The reversal of 3208161157321 is 1237511618023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3208161157321 - 2¹¹ = 3208161155273 is a prime.

It is a super-2 number, since 2×3208161157321² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3208161157121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5803980 + ... + 6332653.

It is an arithmetic number, because the mean of its divisors is an integer number (414004859008).

Almost surely, 2^{3208161157321} is an apocalyptic number.

3208161157321 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3208161157321 is a deficient number, since it is larger than the sum of its proper divisors (103877714743).

3208161157321 is a wasteful number, since it uses less digits than its factorization.

3208161157321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12145191.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 3208161157321 in words is "three trillion, two hundred eight billion, one hundred sixty-one million, one hundred fifty-seven thousand, three hundred twenty-one".