136221456462 has 32 divisors (see below), whose sum is σ = 335314355712. Its totient is φ = 35926537824.

The previous prime is 136221456451. The next prime is 136221456463. The reversal of 136221456462 is 264654122631.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136221456463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124744378 + ... + 124745469.

It is an arithmetic number, because the mean of its divisors is an integer number (10478573616).

Almost surely, 2^136221456462 is an apocalyptic number.

136221456462 is an abundant number, since it is smaller than the sum of its proper divisors (199092899250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136221456462 is a wasteful number, since it uses less digits than its factorization.

136221456462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249489872.

The product of its digits is 414720, while the sum is 42.

The spelling of 136221456462 in words is "one hundred thirty-six billion, two hundred twenty-one million, four hundred fifty-six thousand, four hundred sixty-two".