662112702857 has 4 divisors (see below), whose sum is σ = 662154327060. Its totient is φ = 662071078656.

The previous prime is 662112702851. The next prime is 662112702893. The reversal of 662112702857 is 758207211266.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 758207211266 = 2 ⋅379103605633.

It can be written as a sum of positive squares in 2 ways, for example, as 611280040336 + 50832662521 = 781844^2 + 225461^2 .

It is a cyclic number.

It is not a de Polignac number, because 662112702857 - 2¹⁶ = 662112637321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662112702851) 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, 20788232 + ... + 20820057.

It is an arithmetic number, because the mean of its divisors is an integer number (165538581765).

Almost surely, 2^662112702857 is an apocalyptic number.

It is an amenable number.

662112702857 is a deficient number, since it is larger than the sum of its proper divisors (41624203).

662112702857 is a wasteful number, since it uses less digits than its factorization.

662112702857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41624202.

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 662112702857 in words is "six hundred sixty-two billion, one hundred twelve million, seven hundred two thousand, eight hundred fifty-seven".