345772172555 has 8 divisors (see below), whose sum is σ = 414936194400. Its totient is φ = 276611346496.

The previous prime is 345772172549. The next prime is 345772172567. The reversal of 345772172555 is 555271277543.

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 345772172555 - 2²² = 345767978251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345772172497 and 345772172506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554090 + ... + 999279.

It is an arithmetic number, because the mean of its divisors is an integer number (51867024300).

Almost surely, 2^345772172555 is an apocalyptic number.

345772172555 is a deficient number, since it is larger than the sum of its proper divisors (69164021845).

345772172555 is a wasteful number, since it uses less digits than its factorization.

345772172555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597893.

The product of its digits is 10290000, while the sum is 53.

The spelling of 345772172555 in words is "three hundred forty-five billion, seven hundred seventy-two million, one hundred seventy-two thousand, five hundred fifty-five".