345542402021332 has 24 divisors (see below), whose sum is σ = 606443591817000. Its totient is φ = 172272823504896.

The previous prime is 345542402021329. The next prime is 345542402021339. The reversal of 345542402021332 is 233120204245543.

It can be written as a sum of positive squares in 4 ways, for example, as 5071485984016 + 340470916037316 = 2251996^2 + 18451854^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345542402021339) 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, 70628568 + ... + 75362320.

It is an arithmetic number, because the mean of its divisors is an integer number (25268482992375).

Almost surely, 2^{345542402021332} is an apocalyptic number.

It is an amenable number.

345542402021332 is a deficient number, since it is larger than the sum of its proper divisors (260901189795668).

345542402021332 is a wasteful number, since it uses less digits than its factorization.

345542402021332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4786395 (or 4786393 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 40.

Adding to 345542402021332 its reverse (233120204245543), we get a palindrome (578662606266875).

The spelling of 345542402021332 in words is "three hundred forty-five trillion, five hundred forty-two billion, four hundred two million, twenty-one thousand, three hundred thirty-two".