621465316033345 has 16 divisors (see below), whose sum is σ = 852301264324608. Its totient is φ = 426144658397760.

The previous prime is 621465316033327. The next prime is 621465316033351. The reversal of 621465316033345 is 543330613564126.

It is not a de Polignac number, because 621465316033345 - 2⁵ = 621465316033313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 621465316033292 and 621465316033301.

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, 57156001 + ... + 67154590.

It is an arithmetic number, because the mean of its divisors is an integer number (53268829020288).

Almost surely, 2^{621465316033345} is an apocalyptic number.

It is an amenable number.

621465316033345 is a deficient number, since it is larger than the sum of its proper divisors (230835948291263).

621465316033345 is a wasteful number, since it uses less digits than its factorization.

621465316033345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124453440.

The product of its (nonzero) digits is 13996800, while the sum is 52.

The spelling of 621465316033345 in words is "six hundred twenty-one trillion, four hundred sixty-five billion, three hundred sixteen million, thirty-three thousand, three hundred forty-five".