1006677377081 has 4 divisors (see below), whose sum is σ = 1023180284964. Its totient is φ = 990174469200.

The previous prime is 1006677377077. The next prime is 1006677377107. The reversal of 1006677377081 is 1807737766001.

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 315376589056 + 691300788025 = 561584^2 + 831445^2 .

It is a cyclic number.

It is not a de Polignac number, because 1006677377081 - 2² = 1006677377077 is a prime.

It is a super-2 number, since 2×1006677377081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1006677377011) 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, 8251453850 + ... + 8251453971.

It is an arithmetic number, because the mean of its divisors is an integer number (255795071241).

Almost surely, 2^{1006677377081} is an apocalyptic number.

It is an amenable number.

1006677377081 is a deficient number, since it is larger than the sum of its proper divisors (16502907883).

1006677377081 is an equidigital number, since it uses as much as digits as its factorization.

1006677377081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16502907882.

The product of its (nonzero) digits is 2074464, while the sum is 53.

The spelling of 1006677377081 in words is "one trillion, six billion, six hundred seventy-seven million, three hundred seventy-seven thousand, eighty-one".