136035216421661 has 8 divisors (see below), whose sum is σ = 143195389005600. Its totient is φ = 128875086272880.

The previous prime is 136035216421651. The next prime is 136035216421669. The reversal of 136035216421661 is 166124612530631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-136035216421661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136035216421669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3920495 + ... + 16954076.

It is an arithmetic number, because the mean of its divisors is an integer number (17899423625700).

Almost surely, 2^{136035216421661} is an apocalyptic number.

It is an amenable number.

136035216421661 is a deficient number, since it is larger than the sum of its proper divisors (7160172583939).

136035216421661 is a wasteful number, since it uses less digits than its factorization.

136035216421661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21217579.

The product of its (nonzero) digits is 933120, while the sum is 47.

The spelling of 136035216421661 in words is "one hundred thirty-six trillion, thirty-five billion, two hundred sixteen million, four hundred twenty-one thousand, six hundred sixty-one".