15551525113340 has 12 divisors (see below), whose sum is σ = 32658202738056. Its totient is φ = 6220610045328.

The previous prime is 15551525113337. The next prime is 15551525113349. The reversal of 15551525113340 is 4331152515551.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15551525113349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388788127814 + ... + 388788127853.

It is an arithmetic number, because the mean of its divisors is an integer number (2721516894838).

Almost surely, 2^{15551525113340} is an apocalyptic number.

15551525113340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15551525113340 is an abundant number, since it is smaller than the sum of its proper divisors (17106677624716).

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

15551525113340 is a wasteful number, since it uses less digits than its factorization.

15551525113340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777576255676 (or 777576255674 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 41.

Adding to 15551525113340 its reverse (4331152515551), we get a palindrome (19882677628891).

The spelling of 15551525113340 in words is "fifteen trillion, five hundred fifty-one billion, five hundred twenty-five million, one hundred thirteen thousand, three hundred forty".