621712304616106 has 64 divisors (see below), whose sum is σ = 1025708213808000. Its totient is φ = 280282807705600.

The previous prime is 621712304616061. The next prime is 621712304616119. The reversal of 621712304616106 is 601616403217126.

It is a happy number.

It is a super-2 number, since 2×621712304616106² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4634285526 + ... + 4634419678.

It is an arithmetic number, because the mean of its divisors is an integer number (16026690840750).

Almost surely, 2^{621712304616106} is an apocalyptic number.

621712304616106 is a deficient number, since it is larger than the sum of its proper divisors (403995909191894).

621712304616106 is a wasteful number, since it uses less digits than its factorization.

621712304616106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137415.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 621712304616106 in words is "six hundred twenty-one trillion, seven hundred twelve billion, three hundred four million, six hundred sixteen thousand, one hundred six".