345721569154 has 32 divisors (see below), whose sum is σ = 572239560816. Its totient is φ = 155632558080.

The previous prime is 345721569101. The next prime is 345721569163. The reversal of 345721569154 is 451965127543.

It can be written as a sum of positive squares in 8 ways, for example, as 3406473225 + 342315095929 = 58365^2 + 585077^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4392354 + ... + 4470370.

Almost surely, 2^345721569154 is an apocalyptic number.

345721569154 is a deficient number, since it is larger than the sum of its proper divisors (226517991662).

345721569154 is a wasteful number, since it uses less digits than its factorization.

345721569154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82230.

The product of its digits is 4536000, while the sum is 52.

The spelling of 345721569154 in words is "three hundred forty-five billion, seven hundred twenty-one million, five hundred sixty-nine thousand, one hundred fifty-four".