412655006581 has 4 divisors (see below), whose sum is σ = 413837399500. Its totient is φ = 411472613664.

The previous prime is 412655006567. The next prime is 412655006587. The reversal of 412655006581 is 185600556214.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 215705442481 + 196949564100 = 464441^2 + 443790^2 .

It is a cyclic number.

It is not a de Polignac number, because 412655006581 - 2¹³ = 412654998389 is a prime.

It is a super-2 number, since 2×412655006581² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (412655006587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591195936 + ... + 591196633.

It is an arithmetic number, because the mean of its divisors is an integer number (103459349875).

Almost surely, 2^412655006581 is an apocalyptic number.

It is an amenable number.

412655006581 is a deficient number, since it is larger than the sum of its proper divisors (1182392919).

412655006581 is a wasteful number, since it uses less digits than its factorization.

412655006581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182392918.

The product of its (nonzero) digits is 288000, while the sum is 43.

The spelling of 412655006581 in words is "four hundred twelve billion, six hundred fifty-five million, six thousand, five hundred eighty-one".