345153315521 has 8 divisors (see below), whose sum is σ = 394473911424. Its totient is φ = 295835964480.

The previous prime is 345153315499. The next prime is 345153315691. The reversal of 345153315521 is 125513351543.

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

It is a de Polignac number, because none of the positive numbers 2^k-345153315521 is a prime.

It is a super-2 number, since 2×345153315521² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345153315421) 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, 578840 + ... + 1012601.

It is an arithmetic number, because the mean of its divisors is an integer number (49309238928).

Almost surely, 2^345153315521 is an apocalyptic number.

It is an amenable number.

345153315521 is a deficient number, since it is larger than the sum of its proper divisors (49320595903).

345153315521 is a wasteful number, since it uses less digits than its factorization.

345153315521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622431.

The product of its digits is 135000, while the sum is 38.

The spelling of 345153315521 in words is "three hundred forty-five billion, one hundred fifty-three million, three hundred fifteen thousand, five hundred twenty-one".