1215644620014 has 48 divisors (see below), whose sum is σ = 2895966627840. Its totient is φ = 365476542480.

The previous prime is 1215644620013. The next prime is 1215644620033. The reversal of 1215644620014 is 4100264465121.

1215644620014 is a `hidden beast` number, since 1 + 2 + 1 + 5 + 6 + 446 + 200 + 1 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215644620013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24146584 + ... + 24196875.

It is an arithmetic number, because the mean of its divisors is an integer number (60332638080).

Almost surely, 2^{1215644620014} is an apocalyptic number.

1215644620014 is an abundant number, since it is smaller than the sum of its proper divisors (1680322007826).

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

1215644620014 is a wasteful number, since it uses less digits than its factorization.

1215644620014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48343605 (or 48343602 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 1215644620014 in words is "one trillion, two hundred fifteen billion, six hundred forty-four million, six hundred twenty thousand, fourteen".