351620455220 has 12 divisors (see below), whose sum is σ = 738402956004. Its totient is φ = 140648182080.

The previous prime is 351620455211. The next prime is 351620455229. The reversal of 351620455220 is 22554026153.

It is an interprime number because it is at equal distance from previous prime (351620455211) and next prime (351620455229).

It can be written as a sum of positive squares in 2 ways, for example, as 167251553296 + 184368901924 = 408964^2 + 429382^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351620455229) 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, 8790511361 + ... + 8790511400.

It is an arithmetic number, because the mean of its divisors is an integer number (61533579667).

Almost surely, 2^351620455220 is an apocalyptic number.

It is an amenable number.

351620455220 is an abundant number, since it is smaller than the sum of its proper divisors (386782500784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

351620455220 is a wasteful number, since it uses less digits than its factorization.

351620455220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17581022770 (or 17581022768 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 351620455220 in words is "three hundred fifty-one billion, six hundred twenty million, four hundred fifty-five thousand, two hundred twenty".