612505433555105 has 16 divisors (see below), whose sum is σ = 770978840315904. Its totient is φ = 466245884301120.

The previous prime is 612505433555101. The next prime is 612505433555107. The reversal of 612505433555105 is 501555334505216.

It is a happy number.

It is not a de Polignac number, because 612505433555105 - 2² = 612505433555101 is a prime.

It is a super-2 number, since 2×612505433555105² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612505433555101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13942737734 + ... + 13942781663.

It is an arithmetic number, because the mean of its divisors is an integer number (48186177519744).

Almost surely, 2^{612505433555105} is an apocalyptic number.

It is an amenable number.

612505433555105 is a deficient number, since it is larger than the sum of its proper divisors (158473406760799).

612505433555105 is a wasteful number, since it uses less digits than its factorization.

612505433555105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27885519616.

The product of its (nonzero) digits is 6750000, while the sum is 50.

The spelling of 612505433555105 in words is "six hundred twelve trillion, five hundred five billion, four hundred thirty-three million, five hundred fifty-five thousand, one hundred five".