12415020646 has 32 divisors (see below), whose sum is σ = 21781509120. Its totient is φ = 5197511616.

The previous prime is 12415020637. The next prime is 12415020649. The reversal of 12415020646 is 64602051421.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12415020649) 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, 43395 + ... + 163441.

It is an arithmetic number, because the mean of its divisors is an integer number (680672160).

Almost surely, 2^12415020646 is an apocalyptic number.

12415020646 is a deficient number, since it is larger than the sum of its proper divisors (9366488474).

12415020646 is a wasteful number, since it uses less digits than its factorization.

12415020646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120228.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 12415020646 in words is "twelve billion, four hundred fifteen million, twenty thousand, six hundred forty-six".