136344621916 has 24 divisors (see below), whose sum is σ = 242882025120. Its totient is φ = 66959904000.

The previous prime is 136344621913. The next prime is 136344621967. The reversal of 136344621916 is 619126443631.

It is a super-2 number, since 2×136344621916² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136344621913) 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, 1214425 + ... + 1321936.

It is an arithmetic number, because the mean of its divisors is an integer number (10120084380).

Almost surely, 2^136344621916 is an apocalyptic number.

It is an amenable number.

136344621916 is a deficient number, since it is larger than the sum of its proper divisors (106537403204).

136344621916 is a wasteful number, since it uses less digits than its factorization.

136344621916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2536605 (or 2536603 counting only the distinct ones).

The product of its digits is 559872, while the sum is 46.

The spelling of 136344621916 in words is "one hundred thirty-six billion, three hundred forty-four million, six hundred twenty-one thousand, nine hundred sixteen".