15055427226640 has 20 divisors (see below), whose sum is σ = 35003868302124. Its totient is φ = 6022170890624.

The previous prime is 15055427226611. The next prime is 15055427226643. The reversal of 15055427226640 is 4662272455051.

It can be written as a sum of positive squares in 2 ways, for example, as 11343531776256 + 3711895450384 = 3368016^2 + 1926628^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (15055427226643) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 94096420087 + ... + 94096420246.

Almost surely, 2^{15055427226640} is an apocalyptic number.

15055427226640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15055427226640 is an abundant number, since it is smaller than the sum of its proper divisors (19948441075484).

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

15055427226640 is a wasteful number, since it uses less digits than its factorization.

15055427226640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188192840346 (or 188192840340 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 49.

The spelling of 15055427226640 in words is "fifteen trillion, fifty-five billion, four hundred twenty-seven million, two hundred twenty-six thousand, six hundred forty".