136668047810077 has 4 divisors (see below), whose sum is σ = 156192054640096. Its totient is φ = 117144040980060.

The previous prime is 136668047810069. The next prime is 136668047810111. The reversal of 136668047810077 is 770018740866631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 136668047810077 - 2³ = 136668047810069 is a prime.

It is a super-4 number, since 4×136668047810077⁴ (a number of 58 digits) contains 4444 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 (136668047810027) 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, 9762003414999 + ... + 9762003415012.

It is an arithmetic number, because the mean of its divisors is an integer number (39048013660024).

Almost surely, 2^{136668047810077} is an apocalyptic number.

It is an amenable number.

136668047810077 is a deficient number, since it is larger than the sum of its proper divisors (19524006830019).

136668047810077 is an equidigital number, since it uses as much as digits as its factorization.

136668047810077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19524006830018.

The product of its (nonzero) digits is 56899584, while the sum is 64.

The spelling of 136668047810077 in words is "one hundred thirty-six trillion, six hundred sixty-eight billion, forty-seven million, eight hundred ten thousand, seventy-seven".