2670668533157 has 4 divisors (see below), whose sum is σ = 2670683139660. Its totient is φ = 2670653926656.

The previous prime is 2670668533139. The next prime is 2670668533213. The reversal of 2670668533157 is 7513358660762.

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 2627790134116 + 42878399041 = 1621046^2 + 207071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2670668533157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2670668533096 and 2670668533105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2670668533957) 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, 7025468 + ... + 7395845.

It is an arithmetic number, because the mean of its divisors is an integer number (667670784915).

Almost surely, 2^{2670668533157} is an apocalyptic number.

It is an amenable number.

2670668533157 is a deficient number, since it is larger than the sum of its proper divisors (14606503).

2670668533157 is a wasteful number, since it uses less digits than its factorization.

2670668533157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14606502.

The product of its (nonzero) digits is 38102400, while the sum is 59.

The spelling of 2670668533157 in words is "two trillion, six hundred seventy billion, six hundred sixty-eight million, five hundred thirty-three thousand, one hundred fifty-seven".