136421660683 has 32 divisors (see below), whose sum is σ = 173067632640. Its totient is φ = 104440020000.

The previous prime is 136421660677. The next prime is 136421660689. The reversal of 136421660683 is 386066124631.

It is an interprime number because it is at equal distance from previous prime (136421660677) and next prime (136421660689).

It is a cyclic number.

It is not a de Polignac number, because 136421660683 - 2⁹ = 136421660171 is a prime.

It is a super-2 number, since 2×136421660683² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136421660689) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8764758 + ... + 8780308.

It is an arithmetic number, because the mean of its divisors is an integer number (5408363520).

Almost surely, 2^136421660683 is an apocalyptic number.

136421660683 is a deficient number, since it is larger than the sum of its proper divisors (36645971957).

136421660683 is a wasteful number, since it uses less digits than its factorization.

136421660683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17559.

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 136421660683 in words is "one hundred thirty-six billion, four hundred twenty-one million, six hundred sixty thousand, six hundred eighty-three".