1372400616066 has 16 divisors (see below), whose sum is σ = 2744970535488. Its totient is φ = 457438654800.

The previous prime is 1372400616031. The next prime is 1372400616089. The reversal of 1372400616066 is 6606160042731.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6948805 + ... + 7143576.

It is an arithmetic number, because the mean of its divisors is an integer number (171560658468).

Almost surely, 2^{1372400616066} is an apocalyptic number.

1372400616066 is an abundant number, since it is smaller than the sum of its proper divisors (1372569919422).

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

1372400616066 is a wasteful number, since it uses less digits than its factorization.

1372400616066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14108617.

The product of its (nonzero) digits is 217728, while the sum is 42.

Adding to 1372400616066 its reverse (6606160042731), we get a palindrome (7978560658797).

The spelling of 1372400616066 in words is "one trillion, three hundred seventy-two billion, four hundred million, six hundred sixteen thousand, sixty-six".