13370172544 has 16 divisors (see below), whose sum is σ = 26635890870. Its totient is φ = 6685086208.

The previous prime is 13370172533. The next prime is 13370172547. The reversal of 13370172544 is 44527107331.

It can be written as a sum of positive squares in only one way, i.e., 9309934144 + 4060238400 = 96488^2 + 63720^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (13370172547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52227109 + ... + 52227364.

Almost surely, 2^13370172544 is an apocalyptic number.

It is an amenable number.

13370172544 is a deficient number, since it is larger than the sum of its proper divisors (13265718326).

13370172544 is an equidigital number, since it uses as much as digits as its factorization.

13370172544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104454487 (or 104454475 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

Adding to 13370172544 its reverse (44527107331), we get a palindrome (57897279875).

The spelling of 13370172544 in words is "thirteen billion, three hundred seventy million, one hundred seventy-two thousand, five hundred forty-four".