345655654423221 has 32 divisors (see below), whose sum is σ = 463912920576000. Its totient is φ = 228922255791360.

The previous prime is 345655654423213. The next prime is 345655654423229. The reversal of 345655654423221 is 122324456556543.

It is an interprime number because it is at equal distance from previous prime (345655654423213) and next prime (345655654423229).

It is not a de Polignac number, because 345655654423221 - 2³ = 345655654423213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345655654423229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4149535830 + ... + 4149619128.

It is an arithmetic number, because the mean of its divisors is an integer number (14497278768000).

Almost surely, 2^{345655654423221} is an apocalyptic number.

It is an amenable number.

345655654423221 is a deficient number, since it is larger than the sum of its proper divisors (118257266152779).

345655654423221 is a wasteful number, since it uses less digits than its factorization.

345655654423221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96729.

The product of its digits is 103680000, while the sum is 57.

The spelling of 345655654423221 in words is "three hundred forty-five trillion, six hundred fifty-five billion, six hundred fifty-four million, four hundred twenty-three thousand, two hundred twenty-one".